1.high quality cold extrusion parts 2.more than 10 years 3.drawings and samples are welcomed 4.TS16949 certification cold extrusion parts can be manufactured from any workable alloy including carbon steels, stainless steel, copper alloys, and nickel base alloys. Custom metal forging parts include: rolled ring forgings, bars, blocks, rounds, shafts, square blocks, round bars, discs, crankshaft, ...