All raw materials of our transformers meet the CE certification.

Tianjin Grewin Technology Co.,ltd. has always laying great emphasis on our core business philosophy "Quality and Honesty First ". We trust that high quality products will be very useful to customers' design.

Due to continuous innovative research and development, our products have meet the technical standards and safety standards , which are efficient and environment-friendly.

As a professional leading and a main exporter of a wide variety of electronic components in China for many years, we adhere to new products, quality to meet the needs of you and welcome all of you to negotiate