Sheng Yi Co., Ltd. was established in 1983. Now its products are sold all around the world. At the inception of establishment, our factory was approved by the Ministry of Economic Affairs as qualified for export business. We have done our best in our new product research and development. We have implemented strict quality control with the aim of achieving higher quality. Standardization is another goal. We have achieved ANSI, JIS, DIN, Federal and ISO standards.