... carbon steel material confirming to ASTM, DIN, EN,JIS, GOST, ETC STANDARD: 1)ANSI, DIN, UNI, BS, JIS, KS 2)Welding Neck ... Flange and Stainless Steel Flange be according to ANSI, DIN, UNI, BS, JIS, KS standards. the materials are ASTM A105, ST37 ... / 2634/2635---including PN6, PN10, PN16, PN26, PN40 Flanges; UNI FLANGES: UNI 2253/2254/22762278/22812284/ 6083/6084/ 60896093 Plate, Slip-On ...