... 20 years experience in special fastener fiel Name: metal machinery casting part Ability for the material of this kind of hanger ... steel4130,4140,G51150,etcStainless steel201,202,301,302,303,304,316,310,430,etcBrassC28000,C37710,C3450,C27200,etcBronzeC51900,C60600,C17200,etcAlumimum100 ... exporting so that you couldavoid lots of risks. metal machinery casting part