... :ANSI ASME,DIN,GB Material:carbon,stainless alloy steel ISO9001:2008 carbon steel /alloy Flat Slip-on Bind /Toruseal Flange ... so on. Facing method: rust preventing oil, spray paint (black, yellow), hot galvanization, cold galvanization or colored electroplate, powder ... 1.Standard:ANSI,ASTM,ASME,DIN,GB2.Material:carbon steel,stainless steel and alloy steel3.OD:685mm ,thickness153mm,R12mm4.:Techniques: ...