| Place of Origin |
Jiangsu China (Mainland) |
Material of engine valve:5Cr8Si2, 21-4N+5Cr8Si2, 40Cr and 4Cr9Si2 etc. Processing Method: precision forging spray welding nitriding grinding Surface Treatment of machine spare parts: electroplate Chromate neutral salt spray test(NSS) ISO TS 16949 certificate PPAP & FMEA.