... we can supply ansi slip-on flanges ,welding neck flanges ,socket welding flanges ,blind flanges and so on Materials ... , Grades (stainless steel) Available:EN10222-5/DIN17440: 1 ... (S),SCH 40(S), STD,SCH 80(S) Welding Neck/ Plate/ Socket weld/ Threaded/ Lap Joint ... PN 6 and DIN 2576 PN10 Slip on Welding Flanges, DIN 2631 PN6, DIN 2632 PN10, ...