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Our company is Shenzhen Scieo Electronics Co., Ltd. (Headquartered in Shenzhen, China)

Who we are

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.

We are professional manufacturer & supplier specialized in Civil Engineering & Material testing equipments since 2003. Located in Wuxi, with more than 20000 square meters building area. Dare to try leaders, modern workshop and fabricating equipments, professional & dedicated R&D team, thus make us the most professional company in this industry.

We are a professional power supply product provider, specializing in customized power solutions that cater to diverse customer needs. Our core product range covers transformers, high-precision DC power supplies, load meters, communication power supplies, and frequency conversion power supplies, all of which are tailor-made to meet the specific requirements of different industries and application scenarios.

Hebei Kaixiang Electrical Technology Co., Ltd is a leading manufacturer in emergency power supply test & maintenance industry. Specialized in the design, R&D, manufacture of the high capacity AC & DC load bank, it owns the largest intelligent power supply testing equipment R & D centre in China. Kaixiang offer one-stop solutions to generator set & battery & UPS power manufacturers. Its products are widely used in data centre, shipbuilding, offshore platform, state grid, nuclear power, hospital, communication, railway, war industry etc filed. Kaixiang is strategy partner of many famous company, such as Cummins, Caterpillar, Kohler, Jiangnan Shipyard, CSSC, CSIC, State grid, China mobile, Tecent, Baidu, Sinopec, CETC etc. Some of its products have been exported to America, Singapore, Israel, Japan, United Kingdom, Saudi Arabia, Australia, South Korea, Thailand, Sri Lanka, Angola etc. Through years of development, "Triumph Load" already the first brand in power supply detection industry in China.

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.

Shenzhen Xin Poming Power Equipment Manufacturing Co., Ltd was established in Guangdong Province of China in 2007. We manufactures and sells voltage regulators(Servo type, SCR type, SBW type), transformers(Dry type, oil-immersed type, HV, LV), UPSs, Variable frequency power supply, DC power sources and other power products and can provide systemic power solutions for customers all over the world with it's a complete product list.

Wuhan Feite Electric Co., Ltd is a Chinese hi-tech group enterprise with foreign investment specialized in producing vacuum interrupter. The company has 30 years experiences of producing vacuum interrupters.

Guangzhou Luckon Technology Co., Ltd is a Chinese technology company which focus on the general products like power products, auto parts and accessories, aircraft parts, electrical and electronic equipments, medical equipment and consumables, hardware products and others. The company has established a solid competitive team, and implements the marketing policy of "small profits but quick turnover".

Hebei Yunfan Time Import and Export Trading Co., Ltd

AN HUANG is a modern company of professional design and manufacturer of 3.6kV to 40.5kV Medium Voltage cable accessories, electric components and whole set cabinet Subsidiaries: Anhuang Electric Power Technology Co., Ltd. Zhejiang Anhuang Imp & Exp. Co...Ltd. We provide high quality, low cost products for utility systems worldwide

Shenzhen V&T Technologies Co., Ltd. Was certificated as a "National Hi-tech and Double-Software Enterprise", which has fully intellectual property rights and devotes to the R&D, manufacture, sales and technical service of Inverter, Servo Drive, Electric Vehicle Motor Controller, etc. V&T has won the "Technical Innovation" prize awarded by the Inverter Industry Association, "The Most Competitive Brands" prize awarded by China Electrical Association, "2012 Electric Vehicle Excellent Technology" prize respectively awarded by China Electro-technical Society (CES), the Specialized Committee of Electric Vehicles, the Automotive Engineering Society of China, and the Branch Association of Electric Vehicles. V&T has been ranked as one of the "Top 10 Chinese Inverter Enterprises". V&T successfully listed on the Stock Exchange of China in 2016 (stock code: 300484).

Established in the year 2005, our factory is one of the most professional enterprises in China who specialize in developing and producing garden power tools. We gain an outstanding reputation for the sophisticated technology, skillful manufacture and excellent quality of the electric and gasoline garden tools. With strong R& D capacity, full productive capacity, and OEM capacity, we are capable of providing customers with superior products and the best service!

Wenzhou Rockwell Transformer Co., Ltd. is a high-tech enterprise invested by Rockwill Transmission and distribution Group Co., Ltd. Our company is specialized in developing, manufacturing and marketing Single phase & three phase automatic step voltage regulator, Auto-transformers, power transformers, preventive auto transformer, CT and PT combinated Metering unit, and compact transformer and pad moubted substations.

Different kinds of products are available in our company. We're pleased to get your Inquiry and we will reply you as soon as possible. We stick to the principle of "quality first, service first, continuous improvement and innovation to meet the customers" for the management and "zero defect, zero complaints" as the quality objective.

Located in Dongchangfu District, Liaocheng City, Shandong Province, the company specializes in the manufacturing of rectifiers and inductors, power equipment, and transformers. It possesses multiple patented technologies, including safety protection equipment for dry-type transformers and transformer shell dipping tanks. The company has developed intelligent software for power equipment maintenance services and safety inspection software for power equipment patrols, providing technical support for the safe operation of power equipment. In 2025, Shandong Hengbian Electric Co., Ltd. Was awarded the titles of National High-tech Enterprise, Provincial Specialized, Fine, Unique, and Innovative SME, and Provincial Innovative SME. Located in the High-tech Zone of Liaocheng City, Shandong Province, the company relies on the local advantage of power equipment industry agglomeration, focusing on the manufacturing of transformers, rectifiers, and inductors, while expanding into emerging markets such as photovoltaic equipment and wind power technology services. Under the trend of intelligentization of power equipment, the intelligent software for power equipment maintenance services and safety inspection software developed by the company have enhanced its technological competitiveness in the industry.

Shanghai Sosin Electronics (EMCSOSIN)/ Shanghai Shinegil is a leading high-tech enterprise that specialized in R& D, manufacturing, selling EMC test equipment and service providing. We've been committed to the electromagnetic compatibility (EMC) testing field, offering professional equipment which are widely used in electronics manufacturing, electric power, new energy, telecommunication, aerospace, teaching, renewable energy, automotive and other industries, as well as scientific research. We also provide customers with professional EMC system integration solutions.

Located in Changzhou National High-tech Development Zone of China, Reros (Changzhou) Electronics Co., Ltd. is committed to growing into a manufacturer and service provider in the field of global power supply. It is a joint-stock and high-tech enterprise, integrating design, production, sales and services. Currently Reros has two large production bases, four production plants, five domestic and foreign business departments, 3 R&D centers, more than 100 R&D engineers; Sales offices and service centers in 30 provinces and cities in China. Moreover, it has established more than 80 global agency service outlets in Asian, African, Europe and America.

Ocean Hydraulic Group was established in 2001 and employs 200+ people, with a quarter being specialized design and engineering technicians. The company holds 33 patented technologies and has a factory area of over 20, 000 square meters. Located just 500 kilometers from Beijing and Tianjin ports, and only 15 minutes from Taiyuan International Airport, it specializes in the design and manufacturing of automation equipment. The company customizes various industrial products, including high-precision, large-diameter hydraulic cylinders, hydraulic systems(Hydraulic power unit), mud gun and tapping drill machines, Slag Skimmer machines, ladle tilting device, extrusion machines, and automotive modification components, Steel structural components, Riveted and welded components, etc Over the years, ocean Hydraulic has provided more than 10, 000 sets of specialized equipment worldwide. Feel free to contact us at any time.

Dongguan Merry Electronic Co., Ltd was established in year of 2013, mainly engaged in design, development and sales semiconductors, main product line is Mosfet, Diodes, Schottky, Bridge Rectifiers, SIC, Power IC etc, which are all complied with RoHS and REACH standard. The factory has passed ISO9001, ISO14001, IATF16949 qualification. Our management team have over 20 years experience in this field which can meet your multifarious demands, we provide best quality products according to its superior R&D team, automatic production and strictly quality control system. In addition, based on complete product combination, Merry Electronic fully offer total solutions to our customers. We also offer OEM, ODM, and OBM service to many well-know companies around the world.

GREEF: Green Renewable Energy Earth Future

Wisman High Voltage Power Supply Corporation was founded in 2007, it is the world's leading high voltage power supply, High voltage Micro-modules, High voltage Modules, X-ray Generator, High voltage Rack mount, X-ray Sources, High Voltage Amplifiers, manufacturer serving the medical, analytical, industrial, commercial, telecommunication and scientific communities. Wisman High Voltage's standard and Custom Application high voltage power supplies, High voltage Micro-modules, High voltage Modules, X-ray Generator, High voltage Rack mount, X-ray Sources, High Voltage Amplifiers, Their power range from 0.1 watts to over 200 kilowatts and voltages from 62 volts to over 750kV.

What do we do?

XINCHENG INDUSTRY MATERAL Co., Ltd. Specialize in the Electronical insulation materials in China. We dovoted ourselives to a wide rang of electrical insualtion material products and solutions with high quality.

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.

Hunan Fullde Electric Co., Ltd. is a National High-Tech Enterprise, which founded in 2014, located in Taojiang County of Yiyang City, Hunan Province. We has own factory, R&D team, sales and after-sales department, deisgn, produceing and sell all kins of resistance products, such as load banks, neutral grouding resistors, UHV filter resistors, flexible DC starting Resistors, the rail transit Locomotive braking resistors, marine solid state circuit breaker, special power supply, wind power generation low Voltage through protection system, and others. We also provide load bank renting service.

Zhenjiang Guangchi Precision Electronics Co., Ltd. Was established in 2015 as the core manufacturing base of Shanghai Guangchi Communication Equipment Co., Ltd., which was founded in 2004. It is a professional manufacturer specializing in the R&D, design, and production of RF coaxial connectors, cable assemblies, aviation connectors, Surge/Lightning Arrester, Spring-Loaded Pin and Socket Contacts, and DC Block. Based in Zhenjiang, Jiangsu Province, the facility focuses on the production of RF related  products, ensuring stable quality and scalable manufacturing for global customers. With nearly 20 years of industry experience, the company adheres to innovation-driven development, aiming to provide global customers with high-reliability interconnection solutions.

Gulfstream Oil Pressure (Guangzhou) Technology Co, Ltd is specialized in the development and production of oil andgas pressure, ar and oll pressure conversion and other related products. The AViG0 brand series products include: Hydraulicsystem, oil pressure cylinder, die test bench, fixture, gasliquid pressurized cylinder, Products have a high degree of customization, according to customer needs, can design customers exclusive oil, air pressure products, after many years of markettesting, the products are trusted by customers.

Shenzhen Kang Yuxin Electronic Co., Ltd. - Your Premier Partner for Power Resistors and Load Bank Solutions