calibrate source300+ factories verified

TUNKIA Co., Ltd. is a unique company with top R& D strength in electromagnetics in China. Since its founding in 1998, Changed its name to TUNKIA in 2006. TUNKIA focus on electromagnetic measurement technology, gathered more than 360 personnel all over the world.

Beijing GFUVE Electronics Co., Ltd. Was established in 2005. It combined science, industry and trade together as one high-tech enterprise. GFUVE mainly produces split core current transformer, high voltage ammeter recorder, IEC61850 test suite software, meter test equipment, current probe, reference standard meter, phantom load power source, electrical measurement instrument, relay test set, transformer test, CT analyzer, Test equipment, and power meter, power analyzer, intelligent digital meter, transducer, handheld terminal and split core current transformer, voltage transformer and current transformer models etc.

Wuhan UHV Power Technology Co., Ltd., established in 2021, located in Wuhan East Lake New Technology Development Zone is also named Wuhan Optical Valley with convenient transportation access. And We have self-operation export and import rights.

Xian Yunyi Instrument Co., Ltd. is a professional manufacturer that engaged in the fields of pressure measurement instrument, the chief engineer, Mr Tian has more than 30 years experience on this area, and he is one of the engineers who introduced the Rosemount technology.

The company was established in August 2003. The new factory in Dongguan headquarters has an area of more than 14, 000 square meters (will be relocated in 24 years). The old factory is about 7000 square meters. The company is a Chinese famous brand product, a city, province, and national high-tech enterprise, a small giant in the industry "specialized and special" enterprise, a national and provincial intellectual property demonstration enterprise, Dongguan City Material Property Measurement and Control Test Equipment Engineering Technology Research Center, Dongguan City Patent Cultivate enterprises, national secondary measurement certification, ISO9001 certification. We have won the first prize and second prize of the National Light Industry Science and Technology Award, the first prize of the Provincial Light Industry Science and Technology Award, the first prize of the Dongguan Division of the China Innovation and Entrepreneurship Competition, the member unit of the National Standardization Technical Committee for Shoemaking, and the National Leather Industry Standardization Technical Committee Member unit, member unit of the National Luggage and Bag Standardization Technical Committee, member unit of the Leather Machinery Sub-Technical Committee of the National Light Industry Machinery Standardization Technical Committee, and member unit of the Rubber Shoes Association Technical Committee of the National Rubber and Rubber Products Standardization Technical Committee. The company has more than 40 invention and utility model patents. Our company leads and participates in the formulation of 29 national and industry standards. The company has 26 provincial high-tech product certifications. The company mainly develops and produces shoe leather, bags, rubber products, stationery and other physical devices and instruments. The main customers are the national quality inspection system, enterprise laboratories, university research institutes, etc.

Mingri Electric Co., Ltd. is a leading high-tech enterprise specializing in the design, manufacturing, and innovation of high and low-voltage switchgear, power transmission and distribution systems. With a comprehensive product portfolio including fully insulated gas-filled cabinets, intelligent solid-insulated ring main units, outdoor high-voltage cable distribution boxes, compact substations, circuit breakers, and surge protection devices, we deliver reliable power solutions that meet the most stringent industry standards. Our product range encompasses YBW compact substations, KYN61-40.5/KYN28A series high-voltage switchgear, XGN/HXGN fixed switchgear, SHSRM/SHSG ring main units, and MNS/GCS/GGD/XL low-voltage switchgear - all rigorously tested to ensure superior performance and durability. With decades of experience in the power industry, we've established strong partnerships across transportation, utilities, and construction sectors, providing tailored solutions for diverse industrial applications. Our commitment to technological innovation drives continuous product optimization, integrating smart monitoring capabilities and eco-friendly designs to meet evolving market demands. Supported by a global logistics network, we guarantee timely delivery worldwide, while our expert technical team offers comprehensive after-sales support and maintenance services. Adhering to our "Quality First, Customer Supreme" philosophy, Mingri Electric combines engineering excellence with customer-focused solutions, delivering safe, reliable power distribution equipment that meets international certifications including IEC and ANSI standards. Our ISO-certified manufacturing processes ensure consistent quality, while our R&D investments focus on developing next-generation solutions like SF6-free switchgear and smart grid technologies. From initial consultation to commissioning and beyond, we provide end-to-end project support, helping clients optimize their power infrastructure with efficient, sustainable solutions. As we continue to expand our global presence, Mingri Electric remains dedicated to advancing power distribution technology while maintaining the highest standards of quality, reliability, and customer service that have made us a trusted partner in the electrical industry.

Chongqing Gold Mechanical & Electrical Equipment Co., Ltd is a high-tech enterprise for researching, designing, developing and producing scientific and measuring instruments. With its continuous drawing of lessonas, unremitting innovation and borrowing of advanced technology from both at home and abroad, our company is now becoming a professional manufacture of oil tester, electric tester, fire testing equipment, and oil purifier.

Demark (Wuhan) Technology Co., Ltd. is a company specializing in providing overall solutions for laser industrial applications and laser accessories, integrating R&D, production, sales and technical services. With over 25 years of focus on the laser technology field, the company has a complete range of laser equipment products, including high-precision laser welding machines, environmentally friendly laser cleaning machines, industrial-grade 3D printing systems, multi-functional laser marking machines, intelligent laser cutting machines, and various laser accessories and consumables. We have a team of engineering and technical personnel with many years of experience in analyzing the demands of the laser field. Our equipment is complete and our technical strength is strong, enabling us to provide customers with high-quality products and services.

TOTAL is producing and trading Feeder clamp/ cable clamp, Hanger, Grommet, Gel Seal Closure/Weather Shield Enclosure, Grounding kits, Grounding Enclosure,

HAOMAI Electric Power Automation - Expert in Relay Testers & CT AnalyzersCompany OverviewWuhan HAOMAI Electric Power Automation Co., Ltd. (brand: Relaystar) is a leading manufacturer of relay protection testers, CT analyzers, and power testing equipment. Established in 1999, HAOMAI specializes in high-precision devices for utilities, substations, and industrial power systems.

Beijing Spake Technology Co., Ltd was founded in year of 1998 with total asset of 10 Million USD. It is one of the most professional manufacturers of calibration instruments in China with 27 years' experience. The head office is located in Beijing, the capital city of China with office of 600 Square meter. The Production base is in located in Xinxiang City, Henan Province with total asset of 3 Million USD and the1200 square meter for production. Our main products pressure and temperature calibration instruments, including digital pressure gauge with high accuracy, Intelligent pressure calibrator, pressure module, different range of pressure calibration pump (desktop pressure comparator and handheld pressure comparator) from vacuum up to 5000bar, Multifunctional Process Calibrator, Temperature calibrator dry blocks… etc. We have participated in many domestic and foreign exhibitions such as Hannover Industrial Exhibition in Germany in the past few years. Our brand SPMK calibration instruments have exported to more than 100 countries and enjoy good reputation. We have won many certificates such as ISO 9001, CE certificates and many patents during the past few years. With the corporate philosophy of "Accurate Calibration, Perfect Service" going forward, we will continue developing high quality calibration instruments with the best service and price to more and more customers worldwide.

Delta Technology (Chongqing) Co., Ltd. is a professional and leading supplier of high-precision testing instruments, serving customers in electrical engineering, fire safety, and underground engineering with reliable, high-performance solutions.

Shangqing Zhiyao, a newly established company in 2025, is mainly engaged in gravure printing auxiliary machinery, supporting equipment, QS certified series of instruments, gravure printing equipment (auxiliary materials), gravureprinting technology, color management center, and export trade of purchasing and purchasing.

YiLi PV Tech Ltd adheres to the principle of quality first, customer first. We take quality and the company's reputation as the life of our enterprise. We are willing to wholeheartedly serve our customers with excellent products and a thoughtful service system before, during, and after-sales.

Welcome to Shenzhen Weijunrui Technology Co., Ltd - Your Premier Partner! Since its establishment in 2011, we have been committed to the research and development, production, and sales of core components for industrial automation, and are your trusted partner for signal processing and data acquisition solutions.

Jinan Cyeeyo Instruments Co., Ltd., as the excellent provider of testing instruments and testing services, focuses on customer needs. With her specialization in theorematic research, lab construction as well as instrument R&D and production, Cyeeyo Instruments is devoted to provide most excellent and complete quality control solutions for pharmaceutical, foodstuff, cosmetics, packaging, printing, paper, rubber, adhesive, automotive, petro chemistry, environment, biology, new energy, construction, aviation and electronic industries worldwide.

SKZ Industrial Co., Limited and SKZ International Co., Limited are the members of SKZ group, We are specialized in supply Laboratory Instrument, Scientific instrument, Analytical Instrument, Thermal Analysis, Moisture meter, Gas detector and testing instruments for pulps, paper, cardboards, plastic, rubber and textile.

Haiyan Jinhan Import-Export Co., Ltd. Was developed on the basis of the foreign trade department of Haiyan Jinhan Electronic Technology Co., Ltd. Haiyan Jinhan Electronic Technology Co., Ltd. Was established on November 18, 2004. It is located at No. 485, Yanjia Road, Wanghai Street, Haiyan County, Jiaxing City, Zhejiang Province, China (formerly No. 128 Yinyan Avenue).

HV Hipot Co. Is a high-tech enterprise professionally engaged in R & D, manufacture, and marketing of power testing products, instrumentations, power industry automation systems, which are supplied for national power companies, metallurgy petrochemical corpations, factories and public institution.

Gerneral Introduction

Founded in 2017, Guangzhou Dachen Equipment Manufacturing Co., Ltd. is a creative company integrated with R&D, design, production, sales and technical services of various kinds of automatic equipment in soft tube packaging business, which is widely used in cosmetic, food, pharmacy industry and among others.

Hangzhou CHNSpec is a lhigh-quality brand in the field of color and appearance measure device. It is mainly engaged in the R & D, production and sales of color detection equipment. Its products include precision color difference meter, spectrophotometer, gloss meter, Hazemeter and color matching software. It is widely used in printing, coating, auto parts, metal, household appliances and other industries and scientific research institutions at home and abroad

Xi'an ERUN Environmental Protection Technology Group Co., Ltd (hereinafter referred to as "ERUN") was founded in 2014, with a registered capital of 51.8 million yuan, located in the high-tech zone of Xi'an City, China. With 4 subsidiaries, 5 branches and 2 R&D and production bases, the company is a national high-tech enterprise specializing in the R&D, production and sales of high-end instruments and equipment.

Qingdao Smile Import & Export Trading Co., Ltd. Belong to Qingdao SIMEI Weighing Apparatus Co., Ltd, Which is a company specialized in weighing equipment for Scientific research, development and production. According to ISO9001 quality system management, we equipped with advanced facilities.

Guangdong Xiaowei New Energy Technology Co., Ltd. is a professional turnkey solution provider and equipment manufacturer specializing in lithium battery production. With over 20 years of experience in battery materials, cell manufacturing, and process development, Xiaowei is committed to delivering advanced, reliable, and customized solutions for the global new energy industry.

Qiaolian laser technology co, . Ltd is a manufacturer of complete sets of laser cutting and welding equipment, which has passed the ISO9001 quality system and CE certification. A complete quality control system and a computer-aided production management system have been established and improved to ensure that all aspects of the project from contract signing to production preparation to assembly, painting, commissioning, machine testing and factory inspection are scientific, effective and reasonable, not only improving product quality, but also the product delivery cycle has been effectively controlled.

Nanjing Reach Top Communication Technology Co., Ltd. is a wholly-owned subsidiary of LINGDE (Nanjing) Communication Technology Co., Ltd., focused on the sales and service of RF and microwave products in international markets. As an important platform for the overseas business expansion of its parent company, Nanjing Reach Top leverages LINGDE's mature R&D capabilities and manufacturing systems to provide global customers with professional, efficient, and reliable RF solutions.

Dongguan Huanyi Instruments Technology Co., Ltd. Was established on March 20, 2007, covering an area of 6, 022 square meters. It is a high-tech enterprise integrating R&D, production, sales and after-sales service. It participated in the drafting of national standards and industry standards for environmental simulation test equipment.

Tianjin G-TEK sensor technology Co., Ltd is indicated in providing intelligent sensor products and customized solutions for logistics automation, factory automation and process automation. The predecessor of the company is Tianjin G-TEK automation technology Co., Ltd, a professional sensor manufacturer and sensor solution provider, which was established in 2003 with business ranges from Proximity switch, photoelectric sensor, measurement and safety light curtain to Laser rangefinder sensor, laser radar., etc and serves for Intelligent buildings, intelligent transportation, logistics automation, factory automation and industry robot fields.

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