Beijing W&F Technology Co., Ltd. is registered in Beijing, the capital of China, was established in 2006 and has been in continuous operation for 17 years.

GALAXY ELECTRONICS (SHENZHEN) Co., Ltd, located in Shenzhen, China, was founded in 2004, and was always specialized in offering perfect power solutions for laptop computer and other portable devices. The main products are laptop battery, Digital Camera battery, Camcorder battery, PDA battery, Cordless phone battery, AA/AAA Charger and laptop AC/DC adapters!

Green Optoelectronics Communication Co., Ltd. is one of the most professional companies specializing in the field of communication instruments and electrical appliances in China, we are offering state-of-the-art & cost effective products and solutions to the global customers in more than 40 countries.

? Guangzhou Rontto Trading Co., Ltd. Specializes in production and sales: Nickel-cadmium rechargeable battery, nickel-metal hydride rechargeable battery, disposable dry battery, power bank, lithium ion battery, lithium polymer battery, notebook battery, battery charger, injection molding wire and other products, in strict accordance with the ISO9001: 2015 quality management system certification standard organization production and quality control, the company's products are widely used in: Wireless telephone, intercom, power tools, electric toys, emergency lights, flashlights, lawn lights, medical equipment, instruments and meters, resource exploration, household appliances, high-power lighting, outdoor mobile power supply and other fields.

"green optoelectronics communication Co., Ltd", one of the most professional companies specializing in the field of communication instruments and electrical appliances in China, we are offering state-of-the-art & cost effective products and solutions to the global customers in more than 40 countries.

Linpu Instruments a company that has been a distributor and product developer of international adavanced telecommunications measurement instruments far 10 years, has made great progress in this field.

Shenzhen Hontek Co., Ltd. is a professional international sales company for telecom test equipments. We are the agent of comway, fujikura, sumitomo, exfo, jdsu, anritsu products. At the same time, we have our own factory producing the fiber tester and fiber accessories.

Zhejiang Guangsu Communication Technology Co., Ltd. is a professional company business optical communication instrument and lines of communication tools. Production, sales, maintenance, acting as a whole. Domestic and foreign companies and a number of optical communication products suppliers to maintain long-term technical support and cooperation, but also Japan Fujikura(FUJIKURA)\Henghe (YOKOGAWA)\ Japanese Ancient River (FURUKAWA)\Japan ( SUMITOMO )\Canada EXFO, such as the company' S optical communication instrument and data communication the test instrument, instrument agents.