Product name:crank pin 1.High precision2.Fine quality&surface 3.In transmission equipments ... steel, alloy steel6.Processing: Milling,Grinding,Boring and CNC lathe7.Standard: DIN,JIS,ANSI,ASTM,BS,GB8.Dimension and design: according ... , gears,precision metal parts,shafts,stamping parts and castings Crank pin