HomeSupplier Discoveryarrow-rightInstruments & Metersarrow-rightMeasuring Devicearrow-rightScale Level Factories & Companies
Filter
Category
More
Management Certification
More
R&D Capacity
Annual Revenue
More
No.of Employees
More
Province & Region
More
about scale level
  • Technological Innovation
  • Reliable Supply Chains
  • Substantial Manufacturing Capabilities

scale level9,000+ factories verified

Jiangsu Jiechuang Science And Technology Co., Ltd.

22 yrs
·Manufacturer/Factory & Trading Company
Main Products:
Flow Instrument, Temperature Instrument, Pressure Instrument, Level Instrument
Country/Region:
Jiangsu, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Jiangsu Jiechuang Science and Technology Co., Ltd. Was established in 2000 and is a professional manufacturer specializing in instruments and electrical products. The company is located in Jinhu Industrial Park, Jiangsu Province, China, covering an area of 100, 000 square meters, with a total of 582 employees and total assets nearing 800 million RMB.

Jiangsu Smile Tools Co., Ltd.

13 yrs·4.5
·Manufacturer/Factory & Trading Company
Main Products:
Hand Tools, Hardware, Garden Tools, Candle Tools, Multitools, Spirit Level
Country/Region:
Jiangsu, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
SmileTools, one branch of China Smile Trading Group was established in 2014, Engaged in large-scale hand tools production for overseas export.

Lanxi Kingway International Trade Co., Ltd.

5.0
Main Products:
Roofing Sheets, Doors, Iron Nails, Hinges, Paint Brush, Hand Tools, Locks, Measuring Tools, Hammers, Coffin Fitting
Country/Region:
Zhejiang, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Founded in 2006, Lanxi Kingway International Trade Co., Ltd. is a specialist subsidiary of BestSuppliers Holding Group, integrating manufacturing and trade with nearly two decades of experience. We offer a professional one stop export platform for full category products to global markets.

Jinhua Yijia Tools Co., Ltd.

21 yrs
·Manufacturer/Factory & Trading Company
Main Products:
Screeding Level; Concrete BullFloat; Spirit Level; Bubble Level; Angle Ruler; Vernier Caliper; Folding Ruler
Country/Region:
Zhejiang, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Jinhua Yijia Tools Co., Ltd. Was established in 2004. We are a modern industrial and trading enterprise integrating R&D, production, sales and service, with over 20 years of history. We are dedicated to providing high-quality measuring tools and concrete tools for the global construction, decoration, floor engineering and home DIY markets. Yijia Tools adheres to the "pursuit of excellence" craftsmanship spirit and has built an integrated production line from precision injection molding, metal processing to finished product assembly. Especially with the strong R&D department and long-term market experience in our factory, we can quickly customize new products. Our core products mainly include two categories: 1. Measuring Tools Series, including Aluminum Alloy Level, Die-cast Aluminum Level, Plastic Level, Torpedo Level, Mini Level, Laser Distance Meter, Spirit Level, Bubble Level, Level Vial, Level Bubble, Bubble Level Vial, Spirit Level Vial, Glass Vial, Metal Vials, Cylindrical Spirit Levels, Universal Spirit Levels, Square Spirit Levels, Glass Spirit Levels, Metal Spirit Levels, Calipers, Plastic Vernier Caliper, Folding Rulers, Aluminum Angle Ruler, etc., which are renowned for their high precision and durability. 2. Concrete Tools Series, including Bull Float, Aluminium Telescope Handle, Clamped Handle Screed, Aluminium Screed, Magnesium Hand Float, Concrete Check Rod, Concrete Trowel, Concrete Texture Broom, Concrete Placer, Concrete Spreader, Concrete Fresno Brush, Rolling Tamper, Concrete Tamper, Magnesium Channel Float, Concrete Shoes, Hand Float, Concrete Cutter, Hand Edger, Contractor Push Broom, Floor Squeegee, Spiked Roller, Gauge Rake, Flooring Rake, Toothed Rake, Concrete Scraper, Concrete Grinders, Concrete Scarifiers, Concrete Cut Saw, Concrete Tamping Rammer, Concrete Plate Compactor, Pendulum Concrete Vibrator, Concrete Vibratory Screed, Concrete Truss Screed, Concrete Rake, Heavy duty Texas Placer, Hand Leveling Screed, Magnesium Screed, Concrete Power Trowel, Concrete Blade, Concrete Spreader, etc., which are highly praised for their excellent materials, comfortable hand feel and long-lasting durability. Our company strictly implements international standards and has fully passed ISO9001 quality management system certification, ISO14001 environmental management system certification, and CE certification, and ensures that all products comply with the RoHS environmental protection directive. Currently, the company mainly exports to the United States, Canada, Australia, Europe, America, Asia, Africa and other markets. The main target customers are OEM and ODM brand importers and overseas manufacturers of measuring tools and concrete tools, as well as brand agents, distributors, wholesalers and supermarkets in the overseas market of the same industry. Our level bubble series products, as they are designed to measure levels, their main target customers are various manufacturers of measuring tools, hand tools, LED lights, switches, electronic scales, air conditioners, cameras, washing machines, and large and small equipment. Yijia Tools Level Bubbles are highly favored by customers for their high clarity, high transparency appearance and high internal precision accuracy. In the future, we will continue to target the differentiated needs in the industry and constantly launch measuring tools and concrete tools that meet the differentiated market demands.

Mount Laser (Changzhou) Instrument Co., Ltd.

6 yrs·5.0
Main Products:
Surveying Tripod, Surveying Pole, Surveying Prism, Adapter Tribrach, Leveling Staff, Auto Level, Theodolite, Optical Collimator
Country/Region:
Jiangsu, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Mount Laser is a leading manufacturer of high-quality tools and accessories for the surveying, construction, and GPS&GNSS industries. Our factory, established in 1999 and located in Changzhou, covers over 8000 square meters and employs over 100 skilled workers. We have a complete product line that includes die casting processing, machining processing, injection molding, precision optical cold processing assembly, painting, final assembly, and testing.

Orientools Industrial Co., Ltd.

5.0
Main Products:
Folding Ruler, Carpenter Pencil, Plastic Digital Vernier Caliper, Bubble Level Vial, Square Ruler, Stainless Steel Ruler, Height Gauge, Indicator
Country/Region:
Shanghai, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Our history

Deko Corporation

5.0
Main Products:
Dial Indicators, Micrometers, Calipers, Thickness Gauges, Bore Gauges, Depth Gauges, Height Gauges, Bevel Protractors, Oil Pipe Thread Instruments, CNC Lathe
Country/Region:
Shaanxi, China
R&D Capacity:
OEM Service
Sample Service:
Sample Available
Company Profile:
As one strategic partner of the China aviation industry, Deko Corporation mainly dedicate to the development, manufacture and marketing of KM brand small precision CNC lathes, precision measuring instruments, petroleum oil pipe thread measuring instruments since the end of the last century in the national high technology development zone in Xi'an, where is also the first free trade zone of the Northwest in China. We are certified to ISO 9001, all our products are manufactured and calibrated critically to th exact standards&ISO9001 management standards.

TAIZHOU EBPU PRECISION INSTRUMENTS CO., LTD.

Main Products:
Metallographic Sample Preparation Machine, Ultrasonic Flaw Detector, Surface Roughness Tester, Thickness Meter, Metallurgical Microscope, Brinell Hardness Testing Machine, Vickers Hardness Testing Equipment, Shore Durometer, Portable Leeb Rebound Hardness Test Equipment, Rockwell Hardness Tester
Country/Region:
Zhejiang, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Located in the beautiful coastal city of Wenling, Zhejiang, EBPu Electromechanical Equipment (Zhejiang) Co., Ltd. is a key private enterprise in Wenling's high technology industries. We are committed to becoming the most satisfied supplier to our partners & clients! EBP's mission is provide one-stop testing solutions to customers and make test more easier! We providing our users with innovative & robust full lab-solutions, reliable service, support & access to the knowledge that comes from our team serving the industry for 10+ years.

Lanka Industrial Automation (Shanghai) Co., Ltd.

14 yrs·5.0
·Manufacturer/Factory & Trading Company
Main Products:
Power Cord, Power Cable, Electric Wire, Extension Cord, Power Extension Cable, Cable Reel, Spiral Cable, Data Cable, PDU, Flat Wire
Country/Region:
Shanghai, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Lanka Industrial Automation (Shanghai) Co., Ltd. is a professional manufacturer specializing in the production and sales of high-performance special cables. Our main products include spiral cables, flexible drag chain cables, PVC/TPU cables, crane cables, elevator cables, flat cables, oil- and abrasion-resistant cables, photovoltaic cables, low smoke zero halogen cables, wind turbine cables, automotive cables, flame-retardant and fire-resistant cables, servo cables, and various certified power cables.

Huaibei Huadian Automation Technology Co., Ltd.

12 yrs
·Manufacturer/Factory & Trading Company
Main Products:
Flow Meter, Pressure Transmitter, Signal Isolator
Country/Region:
Anhui, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Huaibei Huadian Automation Technology Co., Ltd., Founded in 2015, we have built a reputation for excellence, innovation, and an unwavering commitment to our clients' success located in the China. Instrument Industry Belt, has established a 30000 square meter intelligent factory with dozens of production lines and an annual production capacity of over one million units. Water quality analysis instruments, recorders, pressure transmitters, signal isolators and other field instruments. We are the biggest manufacturer of industrial process automation sensors and instruments in China. Our instruments are exported to 119 countries worldwide. As a supplier to Fortune 500 companies such as Siemens, ABB, LUKOIL, WEG Group, Coca Cola, etc.,  Our Core Offerings: We specialize in a comprehensive suite of solutions designed to meet the evolving demands of the modern market. We have long been committed to providing accurate, safe, and stable instruments, and can provide OEM services with a customer-centric approach. We are already working extensively in the oil and gas, water and wastewater, chemical and petrochemical industries in more than120 countries and will take further efforts to get closer to customers and respond to their needs quickly and efficiently. We are also actively recruiting channel partners from various regions to expand our business and provide localized services, creating more value for our customers! Headquartered in Hefei China, our global reach extends to 120 countries, serving a growing international clients. We are constantly looking toward the future, investing in research and development to anticipate market trends and deliver the next generation of solutions. We can make sure our the quality of our products always be good and stable. We are very glad to offer you our products, and Hope to get the long-term cooperation with you.  

Jinhua Ruilian Trade Co,Ltd

Main Products:
Hand Tool, Measuring Tools, Tool Set, Building Tools
Country/Region:
Zhejiang, China
R&D Capacity:
OEM Service
Sample Service:
Sample Available
Company Profile:
Jinhua Ruilian Hardware Tools corporation was established in 2002 which was located in Wucheng District, Jinhua City, Zhejiang province. We are specialized in hardware tools, including hand tools set, screwdriver and socket, spirit level, they are all manufactured by ourselves. And with the development of the company for many years, we have accumulated rich experience in hardware tools, spirit level, face shield and electrode holder. Besides, we have all kind of tool set, electric tools, hand tools, spirit level, face shield and electrode holder. And Our factory have passed BSCI and ISO9001 certification.

Hebei Xukang Meter Manufacturing Co., Ltd.

10 yrs·5.0
·Manufacturer/Factory & Trading Company
Main Products:
Level Gauge, Flow Meter, Relex Level Gauge, Sight Glass, Strainer and Filter, Glass Level Gauge, Level Meter, Magnetic Level Gauge, Sight Glass Flow Indicator, Level Switch
Country/Region:
Hebei, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Hebei Xukang Meter Manufacturing Co., Ltd. (Tianjin U-ideal Instrument Co., Ltd. ) is a professional supplier and manufacturer with over two decades of experience.

Hunan Leading Science & Technology Development Co., Ltd.

5.0
Main Products:
Pump Control Box, Pump Controller, Pump Control Panel, Water Pump Control Box, Pump Control System, Water Pump Control, Level Control, Pump Pressure Control, Pump Starter, Pump Protection Box
Country/Region:
Hunan, China
Sample Service:
Sample Available
Company Profile:
Established in 2001, LEADING Science &Technology, has been bringing constantly updated water pump control and protection solutions to the global pump manufacturers and users. Today LEADING Science & Technology, as the front runner of the industry, offers a wide range of pump control panels & pump control accessories for the pump control and protection market.

Hebei Hualin International Trade Co., Ltd.

23 yrs
·Trading Company
Main Products:
Tie Plate, Pin, Wedge, Bolt, Nut, Hollow Pin, Galvanized Wedge, Long Pin, Curved Wedge, Form Clip Left, Form Clip Right, Waler Clamp
Country/Region:
Hebei, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Our company Hebei hualin international trade Co., Ltd., is established in Aug. 2003, situated in 120 South Bailin road, shijiazhuang, the capital of hebei province, we are a professional company of producing and exporting a wide variety of construction hardware productsand building products. Our main productions are aluminium forwmork accessories: Stub pin, Mivan shuttering pin, Wedge, Deck pin, flat tie, Wall tie, tie plate, wedge pin, pipe hook, support pin, threaded rod, washer, U clip, snap tie wedge, hook, shoring support, prop sleeve and nut, jack base, U head jack, panel formwork, steel formwork, common nail, concrete nail, st-nail, cut wire, black annealed wire, panel form with plywood and so on.

Changzhou Skyvictor Import and Export Co., Ltd.

16 yrs
·Trading Company
Main Products:
Laser Level, Rotary Laser Level, Surveying Instrument, Laser Distance Meter, Electrical Measuring Meter, Multimeter, Total Station, Machine Control System, EDM, Electronic Tools
Country/Region:
Jiangsu, China
R&D Capacity:
OEM/ODM Service
Company Profile:
Changzhou Skyvictor Import and Export Co., Ltd is one of the most professional China exporter for all kinds of the construction lasers and the surveying instruments.

Shanghai Tianhe Pharmaceutical Machinery Co., Ltd.

35 yrs
·Manufacturer/Factory & Trading Company
Main Products:
Tablet Press, Pharmaceutical Machinery, Mixing Machine, Capsule Filling Machine, Tablet or Capsule Filling Production Line
Country/Region:
Shanghai, China
R&D Capacity:
OEM/ODM Service
Company Profile:
Established in 1992, Shanghai Tianhe Pharmaceutical Machinery Co., Ltd. is located at the east end of Chongming Island, and the east side of the exit of Shanghai Yangtse Tunnel and Bridge under construction. We are specialized in the production of pharmaceutical machinery and packaging equipment.

Hangzhou Civit Instrument Equipment Co., Ltd.

5.0
Main Products:
Soil Aggregate Rock Testing Equipment, Cement Mortar Testing Equipment, Concrete Testing Equipment, Asphalt Testing Equipment, Scientific Lab Equipment, Survey Instrument
Country/Region:
Zhejiang, China
R&D Capacity:
OEM Service
Sample Service:
Sample Available
Company Profile:
Hangzhou Civit Instrument Equipment Co., Ltd. is professional manufacturer supplier of Testing equipments in construction industry and scientific lab, we specialized in dealing Soil Rock Aggregate testing equipment, Cement Concrete testing equipment, Asphalt testing equipment, also supply Steel testing equipment, Survey instrument, Scientific lab equipment, General labware etc.

Ebic Tools Co., Ltd.

23 yrs·5.0
Main Products:
Power Tools and Accessories, Electric Tools, Cordless Tools, Bench Tools, Garden Tools, Angle Grinder, Construction Equipment, Hammer Drill, Grass Trimmer, Sander
Country/Region:
Jiangsu, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
EBIC Tools is established in 2003, durability, safety, saisfaction and the total power tool solution are the core of the brand FlXTEC, Developed in China with the latest and advanced technology, the brand FlXTEC is on PAR with the world's leading brands in terms of performance and customer satisfaction.

EBIC Tools Co., Ltd.

23 yrs·4.5
Main Products:
Power Tools, Electric Tools, Cordless Tools, Bench Tools, Garden Tools, Angle Grinder, Circular Saw, Cordless Drill, Grass Trimmer, Sander
Country/Region:
Jiangsu, China
R&D Capacity:
ODM Service
Sample Service:
Sample Available
Company Profile:
EBIC Tools is established in 2003, durability, safety, saisfaction and the total power tool solution are the core of the brand FlXTEC, Developed in China with the latest and advanced technology, the brand FlXTEC is on PAR with the world's leading brands in terms of performance and customer satisfaction.

Zhengzhou Shanghe Electronic Technology Co., Ltd.

11 yrs
·Manufacturer/Factory & Trading Company
Main Products:
Height and Weight Scale, Height and Weight Machine, Height Weight Blood Pressure Scale, Fat Analysis Weight Scale, Health Kiosk, Weight Scale
Country/Region:
Henan, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Zhengzhou Shanghe Electronic Technology Co., Ltd. is a manufacturer of height and weight smart scale machines with strong technical research team and well-equipped testing facilities. Our products are of a wide variety of types and stylish designs, with good quality and in reasonable prices.

Suzhou Weighi Equipment Co., Ltd.

12 yrs
·Trading Company
Main Products:
Electronic Scale, Medical Equipment, Lab Equipment, Liquid Filling Machine
Country/Region:
Jiangsu, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
As a dynamic and market-oriented enterprise, our company provides an extensive array of high-quality products designed to cater to your evolving and diverse demands. Since our establishment, we have been consistently guided by the core management philosophy of "Quality First, Customer First, and Credit-Based Operations. " These principles are deeply embedded in our corporate culture and daily practices, driving us to not only meet but also anticipate the latent needs of our clients through proactive innovation and exceptional service.

Atech Sensor Co., Ltd

5.0
Main Products:
Pressure Sensor, Pressure Transmitter, Level Measurement, Pressure Transducer, Water Level Sensor, Water Level Meter, Ultrasonic Level Sensor, Radar Level Sensor, Fuel Level Sensor, Flow Meter
Country/Region:
Shaanxi, China
Sample Service:
Sample Available
Company Profile:
Atech sensor co, . Ltd. specializes in sensor production and sales. The main products includes pressure sensor and transmitter, Level transmitter, pressure gauge, melt pressure transmitter, temperture sensor, pressure transducer, oil pressure sensor, Explosion proof pressure transducer, low-pressure transducer, Commerical Marine pressure transducer, Fuel pressure & Fuel tank pressure sensor, Liquidpressure sensor, ect. As manufacturer, based on technology innovation, good production capacity and strict quality control, we can meet different customers' OEM and ODM demands. As a manufacturer and exporter, we provide the best products with our rich experience and perfessional technoloty for our customers. Best Value = High Quality Product + Competitive Price + Professional Service + Fast Delivery + Long time InsuranceAtech sensor is 100% vertically integrated with engineering, manufacturing, sales & marketing and customer service all supported from within our one facility. All critical components and steps in the manufacture, assembly and testing of a Atech pressure instrument are in our hands and are carefully monitored to ensure that we meet your critical specifications precisely and consistently.

Fuzhou Guangling Electrical Machinery Equipment Co., Ltd.

Main Products:
Diesel Generator, Alternator, Diesel Generator Parts, Marine Generator, Gasoline Generator, RV Generator, Light Tower Generator
Country/Region:
Fujian, China
R&D Capacity:
OEM Service
Sample Service:
Sample Available
Company Profile:
Fuzhou Guangling Electrical Machinery Equipment Co., Ltd. We are manufacture for diesel generator sets. Fast delivery within 15days working days produce, one month can produce 500-1000sets. With high quality diesel generator and spare parts. CE ISO Approved. For more details, pls contact us by email to get price. Established in year 2001, Onew has grown into a professional manufacturer focuses on design, manufacture, sales, installation and services of diesel generator sets with its power range from 1kVA to 3000kVA.

Chengdu Qiyu Technology

Country/Region:
Sichuan, China
Company Profile:
Professional manufacturer of low-latency Dante/AES67 network audio encoders & decoders, AOIP solutions for broadcasting, airports, subways.

Shanghai Rainbow Industry and Trade Co., Ltd.

5.0
Main Products:
Spirit Level, Torpedo and Pocket Spirit Level, Box Torpedo Spirit Level, Heavy Duty I-Beam Spirit Level, Cast Torpedo Spirit Level, Heavy Duty Tripod, Self Inking Stamp, Carpenter Pencil, Tamper Proof Void Seal, Label
Country/Region:
Shanghai, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
We are an experienced manufacturer specializing in injection molding products and metal products. We have many professional production equipment such as injection molding machines, CNC, milling machines, punches, and high-precision testing equipment(developed and designed by ourselves). In order to export our produced mature measuring tools spirit level products (with about 30 years of production experience), as well as plastic accessories water bubble and other plastic products, we set up a new company with import and export rights in 2019, Shanghai Rainbow Industry and Trade Co., Ltd.

Suzhou Zeland Electronic Technology Co., Ltd.

5.0
Main Products:
Total Station, Mini Prism, High Pressure Washer, Rtk Gnss, Aluminum Tripod, Battery and Charger for Total Station, Fogger Machine, Auto Level, Self Levelling Staff, Tribrach
Country/Region:
Jiangsu, China
Sample Service:
Sample Available
Company Profile:
Suzhou Zeland Electronic Technology Co., Ltd. Was located at Suzhou which is called Heaven on Earth and is only 20-30minutes away from Shanghai by train and 1 hour by car on the expressway that links the two cities. We are a professional supplier for all kinds of surveying instrument and surveying accessories such as total station, RTK, auto level, theodlite, mini prism, prism pole, staff, tripod, tribrach and batteries, chargers and cables for total station and GPS etc...

Qidong Junyang Electromechanical Technology Co., Ltd

3 yrs
·Manufacturer/Factory & Trading Company
Main Products:
Power Tools, Laser Level, Garden Tools, Electric Tools, Hand Tools, Electric Wrench, Electric Saw, Electric Hammer, Electric Drill, Chainsaw
Country/Region:
Jiangsu, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Qidong Junyang Electromechanical Technology Co., Ltd is located in Lüsi Port Town, Qidong, Jiangsu, the core industrial belt of China's power tools. With over 50 years of industrial accumulation and a complete industrial chain, this area is a well-known highland of power tool clusters in China. Leveraging local advantages, the company focuses on three core categories: Power tools, instrumentation (levels, distance meters, etc. ) and garden tools. With core competitiveness of direct supply from source factory, strict quality control, high cost performance and efficient response, it has developed into a comprehensive electromechanical tool enterprise integrating R&D, production and sales, providing one-stop supply solutions for global customers.

Zhejiang Benyi New Energy Co., Ltd

15 yrs·4.7
·Manufacturer/Factory & Trading Company
Main Products:
AC Charger; DC Charger; EV Charger; Energy Storage; Microinverter;Rapid Shutdown; PV Combiner Box; MCB; MCCB; SPD; Isolator Switch
Country/Region:
Zhejiang, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Experience innovation with our leading brand. We produce cutting-edge DC protection products, EV charging stations, and more. Our products ensure reliability and performance for solar photovoltaic, battery energy storage, and EV charging systems. We hold certifications from renowned organizations such as UL, SAA, CB, CE, TUV, UKCA, ISO, and RoHS. Our patented DC switch is an industry first. Explore our groundbreaking solutions, including AFCI for rooftop fire protection, dynamic load balancing, and PEN fault detection EV charger. Join us at the forefront of energy technology and discover limitless possibilities. Permitted items: Installation, maintenance and testing of transmission, power supply and receiving power facilities (for projects subject to approval according to law, business activities can only be carried out after approval by relevant departments, and the specific business projects shall be subject to the approval results). General projects: Photovoltaic equipment and components manufacturing; Sales of photovoltaic equipment and components; Import and export of goods; Technology import and export; Distribution switch control equipment manufacturing; Distribution switch control equipment sales; Mechanical and electrical equipment manufacturing; Mechanical and electrical equipment sales; Manufacturing of power electronic components; Sales of power electronic components; Plastic products manufacturing; Sales of plastic products (except for items subject to approval according to law, independently carry out business activities according to law with business licenses).