metal machinery casting part Surface :Plain SGS audited More than 20 years experience in special fastener fiel Name: metal machinery casting part Ability for the material of this kind of hanger: Grade3.6,4.6,4.8,5.6,6.8,8.8,9.8,10.9,12.9,etcCarbon steelGr.B,Gr.C,Gr.D,Gr.36,Gr.58,1010,1015,1016,1020,1045,etcAlloy steel4130,4140,G51150,etcStainless steel201,202,301,302,303,304,316,310,430, ...