In order to revitalize the national industry, Tightsen adheres to the concept of high-quality technical service, carefully implements every technical detail, to provide customers with professional and enthusiastic service. After years of unremitting efforts of all staff, we have won the trust of customers. Tightsen products are in line with the "enterprise standard" filed by the Bureau of Quality Supervision, and are all qualified products through the sampling inspection by the bureau of technical supervision over the years.

In May, 2009,   ISO/TS16949 certified

In Mar,2016, ISO14001 and ISO45001 certified