... .Standard:AISI, ASTM, DIN, GB, BS, JIS,NF Cast Steel Crankshaft 1.Quality system certificate: ISO 90002. Standard: AISI, ASTM, ... , Nickel Plating 11. These parts are used in machine assembly, valve &pump parts, auto &motorcycle parts, train & railway parts, marine hardware ... . Your tech drawings , specifications and samples are welcome for customized. Cast Steel Crankshaft