steel flange 1.size:1/2"-64" 2.PN:PN6,10,16,25,40,100 3.material:cs&ss 4.standard: ... flange: STD, SCH40, SCH80, SCH160. SCHXXSMaterial: carbon steel A105, stainless steel 304/304L, 316/316LCoating: black paint, yellow transparent paint ... steel SS400, stainless steel SUS304, SUS316Coating : rust-proof oil, cold and hot galvanizePacking: sea worthy plywooden case, wooden pallet standard carbon steel ...