SHENYANG TONGDE METAL HARDENNING TECHNOLOGY &am...

Shenyang TongDe Nitriding Import & Export Co. Limited is an incorporated company in Shenyang, Liaoning, China. The specializing developing nitriding surface of metallurgical parts, shafts, engine valves etc. has been sucssefully various type mechanical parts to over 40 clients Changchun ...

Telephone：86-0412-2222209Address：219, Anshan, Liaoning, China