4140 forging and casting steel rotary ring

              Our Advantage: 

1. We have our own factory and 12 cooperative factories, so supply the best quality mechanical products with the most competitive prices.
2. All our factories are ISO 9001 certified. Some of them were awarded by ISO/TS16949, PED, etc. We also could provide RT, UT, MPI, WPS&PQR, etc. as per request.
3. We will not only manufacture and source products for our customers, but also provide technical support, production all-time supervision and quality track service. Special request products available upon request