We, Jiangsu Shenyuan Special Steel Co., Ltd., are one of the leading manufacturers of engine valve steel in China, and have received ISO9001 and TS16949 certification. Our steel products currently include: 1) Valve steel: 5Cr9Si3, 21-2N, 21-4N, 21-12N, 23-8N, X60, X80, Inconel 751, Nimonic 80A. We are leading manufacturer in China and Chinese standard of combustion engine valve steels is established by us. 2) Stainless wire rods and wires for welding use. Because we have our own melting ...