... ductile cast iron 1.cast steel,cast iron malleable iron casting,stainless steel casting part. qt400 450 ductile cast iron P/NAluminum Die Casting Part,ductile iron,cast steel,stainless steel ... casting ,precision casting MaterialAluminum,zinc,iron,steel,stainless steelFinishNickel plating-polish,hot dip galvanizedMethod Die ...