Grewin group was established in 1993. After several years of hard work, Grewin group has honed the will to keep improving and strive for improvement, adhere to the principle of diligence and integrity, and adhere to the principle of "customer first, customer first, quality service, and abide by the contract", With high-quality products, good reputation and high-quality service, the products sell well in nearly 30 provinces, municipalities and autonomous regions across the country. Dedicated to win-win cooperation with domestic and foreign merchants, common development, and create brilliant!
Professional manufacture: winding toroidal power transformers, current transformers, El coil, inductors and variable voltage transtomers, as well as toroidal taping machines, toroidal winding / tansformer tester.
