... , 304L, 321 4)TUV certification Features: 1) Stainless steel flange and carbon steel flange.2) Standard: ANSI, JIS, DIN.3) Material: 316L ... , 16Mo3, 13CrMo4-5.4) Production with anneal solution for stainless performance.5) Special design available.Outer packing: Seaworthy plywood case.Supply Ability: 100MT ...