grouptek is the brand of Shenzhen Liantaixing Electronic Technology Co., Ltd. Trademark type: Scientific instruments. Product and service list: transformers (electrical), transformers, filters. General business items are: technical development and sales of computer network products and related components, software and optical switches, optical collimators, splitters, auto parts, inductors, transformers, power supply magnetic components, and electronic components. The company's address is on the 4th and 5th floors of Building 1, Weitai Road, Yingrenshi Industrial Zone, Shiyan Street, Bao'an District, Shenzhen City, Guangdong Province. The agency is Shenzhen Elite Trademark Office.