... neck flange: STD, SCH40, SCH80, SCH160. SCHXXSMaterial: carbon steel A105, stainless steel 304/304L, 316/316LCoating: black paint, yellow transparent ... : PN6, PN10, PN16, PN25, PN40Material: carbon steel CT-20, stainless steel 304/304L, 316/316LCoating: rust-proof oil, ... 2K, 5K, 10K, 16K, 20K, 30K, 40KMaterial: carbon steel SS400, stainless steel SUS304, SUS316Coating : rust-proof oil, cold and hot ...