... steel forged parts carbon steel st37 s45c carbon steel c40 carbon steel SpecificationsForging parts 1.Carbon steel&stainless steel ... and other possible materials, with high quality raw material2, Advanced production lines, high technology and experienced workers.3, ... 20007,Process: polishing, nickel, chromo, plating, etc8, High quality raw material9,Determined in accordance with product specifications, ...