HomeSupplier Discoveryarrow-rightHealth & Medicinearrow-rightHandheld Massagerarrow-rightVibrating Hammers Factories & Companies
Filter
Category
More
Management Certification
More
R&D Capacity
Annual Revenue
More
No.of Employees
More
Province & Region
More
about vibrating hammers
  • Technological Innovation
  • Reliable Supply Chains
  • Substantial Manufacturing Capabilities

vibrating hammers500+ factories verified

Yantai Juxiang Construction Machinery Co., Ltd

18 yrs
·Manufacturer/Factory & Trading Company
Main Products:
Vibro Hammer, Hydraulic Breaker, Excavator Long Reach Boom, Primary Crusher, Hydraulic Metal Shear, Secondary Crusher, Screening Bucket, Quick Hitch Coupler, Plate Compactor, Hydraulic Attachments
Country/Region:
Shandong, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
In 2005, Yantai Juxiang, a manufacturer of excavator attachments, was officially established. The company is a technology-driven modern equipment manufacturing enterprise. It has passed ISO9001 quality management system certification and CE EU quality management system certification.

Xuzhou Hengxing Jinqiao Machinery Technology Co., Ltd.

18 yrs·5.0
·Manufacturer/Factory & Trading Company
Main Products:
Pile Driver, Kelly Bar, Drilling Machine, Drilling Tools
Country/Region:
Jiangsu, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Xuzhou Hengxing Jinqiao Machinery Technology Co., Ltd covers an area of more than 50 acres and with factory area about 20000 square meter. We are the professional construction machinery manufacture for rotary drilling rig kelly bar, highway guardrail pile driver and PV post driver, with our own R&D and sales team.

Yantai Hope Precision Machinery Co.,Ltd.

6 yrs
·Manufacturer/Factory & Trading Company
Main Products:
Hydraulic Breaker, Quick Coupler, Main Body, Hydraulic Grabber, Vibrating Compactor, Hydraulic Pulverizer, Chisel, Seal Kits, Piston, Cyclinder, Front Head, Back Head, Reversing Valve, Through Bolt
Country/Region:
Shandong, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Yantai Hope Precision Machinery Co., Ltd. Was officially established in 2006 in Yantai, a coastal city with beautiful scenery. Since its establishment, the company has been always focusing on the field of excavator attachments and their accessories. It has been working painstakingly in the technical research and development as well as sales and service of products such as crushing hammers, wood grapples, vibratory rammers, and quick couplers, accumulating profound industry experience and technical strength.

Yantai Hawk Hydraulic Equipment Co., Ltd.

8 yrs
·Manufacturer/Factory & Trading Company
Main Products:
Sawmill, Hydraulic Breaker, Post Driver, Tree Shear, Pile Hammer, Cone Splitter, Grab Bucket, Hydraulic Grapple, Ripper, Rake
Country/Region:
Shandong, China
R&D Capacity:
ODM Service
Sample Service:
Sample Available
Company Profile:
Yantai HAWK Hydraulic Equipment Co., Ltd is a leading manufacturer for excavator attachments and forestry machinery in China. All products quality are strictly under control from processing to delivery. By continuous innovation and improvement, the company has got ISO 9001, CE certifications and technical patents successively. Our products have been sold to widely domestic and oversea customers and long term partnerships have been developed.

Yantai Zhuoxin Machinery Technology Co., Ltd.

4 yrs
·Manufacturer/Factory & Trading Company
Main Products:
Hydraulic Breaker, Hydraulic Pile Hammer, Quick Hitch, Hydraulic Shear, Hydraulic Pulverizer, Grapple, Orange Peel Grapple, Hydraulic Compactor
Country/Region:
Shandong, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Yantai Zhuoxin Machinery Technology Co., Ltd., with its extensive 16-year history, stands as a testament to excellence in the field of excavator attachment manufacturing. As a comprehensive, one-stop enterprise, Zhuoxin Machinery is dedicated to providing top-tier solutions tailored to the dynamic needs of the construction and excavation industries worldwide.

YANTAI HEMEI HYDRAULIC MACHINERY EQUIPMENT COMPANY LIMITED

8 yrs
·Manufacturer/Factory & Trading Company
Main Products:
Log Grapple, Wood Grapple, Rock Grapple, Demolition Shear, Quick Hitch, Excavator Accessories
Country/Region:
Shandong, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
YANTAI HEMEI HYDRAULIC MACHINERY EQUIPMENT CO. Ltd, locate in Yantai City of Shandong Province, East of China, Founded in 2018, which is a High-Tech manufacturing company of Excavator Attachments.

CHANGZHOU RAYMOND INTERNATIONAL TRADING CO., LTD.

17 yrs
·Manufacturer/Factory & Trading Company
Main Products:
Auger, Hydraulic Breaker, Excavator Quuick Coupler, Excavator Bucket, Hydraulic Quick Hitch, Hydraulic Earth Auger, Rock Bucket
Country/Region:
Jiangsu, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Changzhou Raymond International Trading Co., Ltd. Deal in producing all kinds of precision machinery. Established in 2002, our company has developed into an energetic and vigorous enterprise. The factory covers an area of 20800 square meters, and the building area is 8000 square meters. Currently, we have 100 experienced technical staffs, 5 technicians. Our company has first-class techniques. The products have passed the authentication of ISO9001-2000 quality system. Due to excellent technical specialists and advanced producing equipments, Our products have high quality and competitive price. We sincerely provide customers with the most satisfactory service, and have received good comments and support from a wide range of customers. Sincerely welcome all circle customers from domestic and overseas come to our factory and have a visit, In the hope that we can establish business relationship with you in this field.

Jinan Yideli Mining Machinery Co., Ltd

Main Products:
Crusher, Vibrating Screen, Feeder, Conveyer Belt, Jaw Plate
Country/Region:
Shandong, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Jinan Yideli Mining Machinery Co., Ltd (JYMM) was founded in 2001, focusing on the crusher industry. Its main products include crushers such as sand making machines, hammer crushers, jaw crushers, crusher accessories such as hammer heads, and crusher supporting equipment. JYMM is one of the drafting units of national standard, meriting of its leadership in bimetallic composite hammerhead. Aside, JYMM's series of products are widely used in metallurgy, building materials, electric power, mining and other industries. Inorganic ceramic sand binder molding shell technique was adopted by JYMM, and it also has fully equipped facilities, e. g. Energy-saving steel shell intermediate frequency melting furnace, fiber trolley-type electric-resistance furnace, automatic core shooting machine etc. Moreover, JYMM possesses advanced physical and chemical characterization equipment, e. g. Metallurgical microscope, spectral analyzer, high-frequency infrared carbon and sulfur instrument, desktop hardness tester and other imported facilities. JYMM has passed ISO9001: 2015 quality management system certification, ISO14001: 2015 environmental management system certification and ISO45001: 2018 occupational health and safety management system certification.

Xiamen Morrow Sun Technology Co., Ltd.

5.0
Main Products:
Massage Chair, Massage Pillow, Massage Cushion, Shoulder Massager, Massage Sticker, Foot Massager, Foot SPA
Country/Region:
Fujian, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Xiamen Morrow Sun Technology Co., Ltd is one professional health care and massager manufacturer, which is set up in 2008. The founder has 22 years international business experience on massager.

Baoding Yuezhuo Metal Products Co., Ltd.

6 yrs
·Manufacturer/Factory & Trading Company
Main Products:
Excavator Bucket, Excavator Chain, Excavator High Frequency Vibrating Screen
Country/Region:
Hebei, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Baoding Yuezhuo Metal Products Co., Ltd. is a professional export company engaged in the development, sales, and service of excavator parts products. Committed to strict quality control and attentive customer service, we professionally study and meet the diverse purchasing needs of different customers, and ensure complete customer satisfaction. We have a professional team consisting of more than 100 people, with over 15 years of research and production experience. Our factory produces 2, 000 tons of products annually and serves thousands of users. If you are interested in our products and need professional services, please do not hesitate to contact us. Looking forward to our cooperation.

Yantai Chengtai Construction Machinery Co., Ltd.

Main Products:
Hydraulic Breaker Factory, Hydraulic Rock Breaker Factory, Hydraulic Hammer Factory, Hydraulic Demolition Shears, Excavator Concrete Crusher, Hydraulic Compactor, Hydraulic Breaker Hammer Factory, Earth Auger, China Breaker Hammer Factory, Tilting Quick Hitch
Country/Region:
Shandong, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Yantai Chengtai Construction Machinery Co., Ltd is one of the professional manufacturer for excavator hydraulic breaker in Yantai city, shandong, China with area of 5000 square meters workshop. Specialized in manufacturing soosan SB series hydraulic breaker more than 10 years. Chisel diameter from 35mm to 195mm. Suit for 0.5ton to 60 ton excavator. We have several high precision production line, include Korea Doosan CNC, Doosan and so on which lay a solid foundation for products Precision machining.

Hebei Monteono Machinery Technology Co., Ltd.

5.0
Main Products:
Breaker Parts, Pipeline Kits, Seals Kit, Excavator Attachments, Excavator Parts, Forklift, Wheels Loader, Dust Collecter
Country/Region:
Hebei, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Hebei Monteono Machinery Technology Co., Ltd., located in Handan city, Hebei Province, is a leading manufacturer of excavator attachments, pipeline kit, seals kit, hydraulic breaker, breaker chisel, bushing and other excavator spare parts.

Shandong Pailien Machinery Manufacturing Co., Ltd.

11 yrs
·Manufacturer/Factory & Trading Company
Main Products:
Drilling Rig, Rock Splitter, Excavator Attachment Series, Mining Drilling Rig Series, Municipal Maintenance Equipment, Jack Pushing Equipment, Fire Rescue Equipment
Country/Region:
Shandong, China
R&D Capacity:
OEM/ODM Service
Company Profile:
Shandong Pailien Machinery Manufacturing Co., Ltd., established in 2015, is a well-known comprehensive enterprise integrating product R&D, manufacturing, sales, and service. Through the development of a professional and international brand marketing and service system, the company strives to become an industry-leading brand. Actively responding to Shandong's "Smart Manufacturing" policy, the company invested 80 million yuan to establish the Pailien Intelligent Industrial Park. This initiative aims to promote regional industrial upgrading through core technological innovation and empower high-quality enterprise development. The company adheres to the development philosophy of "empowering technology, winning with quality, and setting industry benchmarks" and continuously increases its R&D investment. The company has obtained ISO9001 international quality certification, AAA-level quality management system certification, and is a national AAA-level demonstration unit for quality, reputation, and service. It has also obtained 3A-level credit enterprise certification, Shandong Province's contract-abiding and credit-worthy enterprise certification, CE European safety certification, and SGS testing certification, establishing itself as a comprehensive service enterprise characterized by professionalism, refinement, distinctiveness, and innovation. The company offers over 80 types of equipment in over 500 specifications and models, providing supporting products and customized services to numerous complete machine manufacturers. It is widely used in national key units such as China Railway, China Construction, China Communications Construction and many local highway bureaus across the country, providing construction solutions for a variety of engineering equipment. Its customers are spread across more than 30 provinces, cities and regions across the country, and its products are exported to more than 60 countries and regions around the world, including the United States, Japan, Germany, Africa, Malaysia, etc.

Yantai Li gong Machinery Equipment Co., Ltd.

Main Products:
Hydraulic Hammer, Hydraulic Shear, Excavator Bucket, Vibro Hammer, Concrete Breaker, Sheet Pile Driver, Demolition Shear, Hydraulic Grapple, Concrete Crusher, Skid Steer Attachments
Country/Region:
Shandong, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Yantai Ligong Machinery Equipment Co., Ltd was established in May 2010, covering an area of more than 8, 000m2, with 110 employees, 6 R&D staff. Ligong company is specialized in all kind of attachments for excavators, such as hydraulic hammer, vibro hammer, quick couplers, grapples, shears, buckets etc.

Jiangsu River Heavy Industry Co., Ltd

Main Products:
Amphibious Exacavator, Pontoon Undercarriage, Long Reach Boom, Hydraulic Cutter Suction Pump, Swamp Buggy, Floating Excavator, Excavator Attachments, Amphibious Undercarriage
Country/Region:
Jiangsu, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Jiangsu River Heavy Industry Co., Ltd. Was established in 2003 with a registered capital of 20 million yuan. RIVER is a private enterprise integrating R&D, production and sales. We have two production bases in Hubei and Jiangsu, with a total plant area of more than 20, 000 square meters.

Yantai Sanyu Machinery Equipment Co., Ltd.

9 yrs·5.0
·Manufacturer/Factory & Trading Company
Main Products:
Construction Machinery Equipment and Accessories, Mining Machinery Equipment and Accessories, Petroleum Machinery Equipment and Accessories
Country/Region:
Shandong, China
R&D Capacity:
ODM Service
Sample Service:
Sample Available
Company Profile:
Yantai Sanyu Machinery Equipment Co., Ltd. Was established in 2003. It is a high-tech enterprise focusing on the research and development, production and sales of hydraulic breakers and their accessories. It is committed to providing efficient and durable crushing equipment for engineering fields such as construction, mining, and roads. Based on exquisite manufacturing technology and strict quality management system, the company's products are widely used in domestic and foreign markets and exported to Southeast Asia, the Middle East, Europe, Africa, South America and other countries and regions.

Yantai Jiwei Construction Machinery Equipment Co., Ltd.

5.0
Main Products:
Hydraulic Breaker, Hydraulic Hammer, Hydraulic Breaker Hammer, Log Grapple, Excavator Breaker, Hydraulic Rock Breaker, Excavator Hammer, Quick Hitch Coupler, Martillo Hidraulico, Hydraulic Breaker Manufacturer
Country/Region:
Shandong, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Established in 2009, Yantai Jiwei Construction Machinery Co., Ltd are always focusing on development, production, sales and services of hydraulic breakers and various excavator attachments such as hydraulic grapple, hydraulic demolition grab, excavator ripper, hydraulic compantor, pile hammer, hydraulic shear, excavator buckets, mini excavator and so on. With professional manufacturing technology, Our HMB brand hydraulic breakers and related excavator attachments are widely used in construction, demolition, metallurgy, mining industry and so on.

Xuzhou Bonovo Machinery & Equipment Co., Ltd.

14 yrs·5.0
·Manufacturer/Factory & Trading Company
Main Products:
Construction Machinery; Construction Machinery Attachments; Excavator Bucket
Country/Region:
Jiangsu, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Xuzhou Bonovo Machinery & Equipment Co., Ltd. is a professional company integrating R&D, manufacturing and sales of construction machinery attachments, GET parts, and undercarriage. From end-users and OEM partners to our dealers, Bonovo has built a reputation for exceptional quality and customer service. We have built solid cooperation with world - renowned dealers as OEM in supporting processing and provided support services for domestic and foreign manufacturers.

Jisan Heavy Industry Ltd.

18 yrs
·Manufacturer/Factory & Trading Company
Main Products:
Hydraulic Breaker, Eagle Shear, Pulverizer, Excavator Crusher, Sorting Grapple, Rotary rock Grapple, Pile Hammer, Plate Compactor, Grab Bucket, Ripper, Bucket
Country/Region:
Shandong, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Jisan Heavy Industry Ltd. Is a modernized manufacture enterprise specializing in independent R & D, manufacturing of all the excavators matching equipments. The company is equipped with Plasma Cutting Machine, Edge Milling Machine, Welding Machine, CNC Machine, Sand and Spraying Equipment, Flaw Detector those processing and testing equipment, to lay a solid foundation for ensuring the advancing production capacity.

Xuzhou Shenfu Construction Machinery and Equipment Co., Ltd.

19 yrs
·Manufacturer/Factory & Trading Company
Main Products:
Ripper, Excavator Part, Excavator Bucket
Country/Region:
Jiangsu, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Xuzhou is one of the four construction machinery base in China. There are many modern private enterprises which produce construction machinery accessories, and Shenfu is one of the excellent companies.

Hunan Hongchang Machinery Co., Ltd

5 yrs·5.0
·Manufacturer/Factory & Trading Company
Main Products:
Mini Excavator Attachments, Quick Hitches,Hydraulic Quick Hitches,Hydraulic Tilting Quick Coupler, Bucket,Tilt Bucket,Wheel Loader Attachments,Wheel Loader Bucket,Hydraulic Rotary Sweeper,Mini Dumper
Country/Region:
Hunan, China
R&D Capacity:
OEM/ODM Service
Company Profile:
In 2021, Hunan Rente Machinery Co., Ltd., the parent company, founded Hunan Hongchang Machinery Co., Ltd. With a clear - cut mission: To spearhead the development within the accessory domain. Hongchang Machinery has honed its focus on a comprehensive value - chain, encompassing research and development, production, manufacturing, and marketing services of supporting operation devices for engineering equipment, such as excavators and loaders. Nestled in the Hunan Engineering Machinery Supporting Industrial Park, the company sprawls across an expanse of over 100 acres, providing ample space for its ambitious undertakings. The management team of Hongchang Machinery is an assemblage of seasoned professionals hailing from leading players in the engineering machinery industry. This infusion of high - caliber talent has enabled the company to claim the distinction of being the first professional R & D and manufacturing enterprise in Hunan province to offer holistic solutions for supporting operating equipment. Guided by the forward - thinking development philosophy of "born to meet customer needs", the company adheres unwaveringly to the tenet that quality is the very lifeline of the enterprise. By leveraging its rich reservoir of accumulated experience, Hongchang Machinery has transformed this intangible asset into a formidable core competitive edge. With unwavering determination and ceaseless effort, the company is on a relentless quest to ascend to the echelons of leading domestic and world - class manufacturers of engineering equipment operation devices.

Jinan Shansong Construction Machinery Co., Ltd.

Main Products:
Rock Drill, Excavator Attachment, Hydraulic Grab, Demolition Shears, Mini Excavator, Construction Machinery Parts, Mining Machine, Engineering Machine, Garden Machine, Hydraulic Breaker
Country/Region:
Shandong, China
R&D Capacity:
OEM Service
Sample Service:
Sample Available
Company Profile:
Jinan Shansong Construction Machinery Co., Ltd. (JNSS) was established in 2002, located in Jinan, China. With more than 20 years of sales and service experience of hydraulic hammer, JNSS has been proven the leader of hydraulic hammer in China. JNSS has been upholding the business principle of "Quality First, Customer Supreme, Integrity-based, Excellence in Development". Our products and services continue to develop and improve, offering sincere service to support customers' career development.

Realtop Heavy Industry Co., Ltd.

18 yrs
·Trading Company
Main Products:
Pipe Jacking Machine, TBM Machine, HDD Machine, Vibratory Piling Hammer, Stationary Concrete Pump, Truck Concrete Pump, Concrete Boom Pump, Concrete Mixer Pump and Concrete Batching Plant, Construct Hoist, Tower Crane, Skid Steer Loader, Wheel Loader, Rubber Fender and Dock Fender
Country/Region:
Hunan, China
R&D Capacity:
OEM/ODM Service
Company Profile:
Realtop Heavy Industry Co., Ltd is a modern high-tech manufacturer of construction machinery with strong R&D and produce capability.

HENAN RANCHENG MACHINERY CO., LTD.

7 yrs
Main Products:
Water Well Drilling Machine, Rotary Drilling Rig, DTH Drilling Rig, Anchor Drilling Rig, Core Drilling Rig, Solar Pile Driver, Air Compressor, Mud Pump, Drilling Tools, Mini Excavator
Country/Region:
Henan, China
R&D Capacity:
OEM/ODM Service
Company Profile:
Henan Rancheng Machinery Co., Ltd is located in Zhengzhou City, Henan Province, who is dedicated in designing and manufacturing drilling rigs, mud pump, air compressor and drilling tools etc. These products are widely used in water well drilling, soil sampling, geotechnical testing, mine exploration, foundation drilling, geothermal drilling, anchor drilling, solar pile installation etc projects. All of our products comply with international quality standards and are greatly appreciated in a variety of different markets throughout the world.

Yantai Shengxin Construction Machinery Co., Ltd

3 yrs·5.0
·Manufacturer/Factory & Trading Company
Main Products:
Hydraulic Breaker, Hydraulic Plate Compactor, Swing Quick Connector, Hammer Back Clamp, Field Mower, Hydraulic Power Shear, Ripper
Country/Region:
Shandong, China
R&D Capacity:
ODM Service
Company Profile:
Yantai Shengxin Construction Machinery Co., Ltd. is a modern manufacturing enterprisecommitted to independent R & D, production and sales of various supporting operating devicesof excavators. Located in Fushan District, Yantai City, Shandong Province, the company has acutting-edge technology R & D group and production technology.

Shandong Snowte Powder Technology Co., Ltd

9 yrs
·Manufacturer/Factory & Trading Company
Main Products:
Pulverizer
Country/Region:
Shandong, China
R&D Capacity:
OEM/ODM Service
Company Profile:
Shandong Snuote Powder Technology Co., Ltd.  is a leading manufacturer of ultrafine grinding, micronizing, and powder-processing systems. Based in Weifang, we integrate R&D, manufacturing, and engineering to deliver high-performance equipment worldwide. Our portfolio includes ultrafine grinders, jet mills, air classifiers, ACM mills, vertical mills, and turnkey powder-processing lines for chemicals, minerals, pharmaceuticals, food, spices, pigments, ceramics, and new materials.

Zhengzhou General Mining Machinery Co., Ltd.

22 yrs
·Manufacturer/Factory & Trading Company
Main Products:
Stone Crusher, Jaw Crusher, Sand Making Machine, Stone Production Line, Mobile Crusher Station, Raymond Mill, Grinding Mill, Mtw Mill, Ball Mill, Cone Crusher
Country/Region:
Henan, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Zhengzhou General Mining Machinery Co., Ltd., was foundeded in 2004, aiming to serve the need in mining, metallurgy, construction, chemical industry etc. We manufacture TYM brand Mining Machinery which are 100% of our own design, production detection and marketing.

Jiangxi Victor International Mining Equipment Co., Ltd.

12 yrs·5.0
·Manufacturer/Factory & Trading Company
Main Products:
Mining Machine, Mineral Processing Equipment, Shaking Table, Spiral Concentrator
Country/Region:
Jiangxi, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Jiangxi Victor International Mining Equipment Co., Ltd. is a large mineral processing manufacturer which is specialized in designing, producing, installing and debugging as well as providing processing line design and course training of mineral processing. Presently our company is a large manufacturer in China, with covering an area of 48, 000 square meters and 20, 000 square meters for workshop, with various large modernized machinery facilities, professional R&D team and installation team.

HENAN TURUI MACHINERY CO., LTD.

Main Products:
Rock Crusher, Gold Mining Equipment, Ball Mill, Grinding Equipment, Crushing Equipment, Building Material Equipment
Country/Region:
Henan, China
Company Profile:
Henan Turui Machinery Co., Ltd, is a machinery manufacturing enterprise integrating design, research and development production, sales and installation. The products are machines which mainly used for mines, cement and building materials. The company covers an area of 80, 000 square meters, building area of 20, 000 spare meters. The workshop has more than 40 sets of boring-milling machine, gear hobbling machine, vertical lathe, travelling crane and etc. It formed an independent technology process production line. Now the company has workers more than one hundred, includes 8professional engineers. 75% of the total workers have participated the professional technical training.