... , ETC STANDARD: 1)ANSI, DIN, UNI, BS, JIS, KS 2)Welding Neck Flange, Slip-On, Blind,Lap joint,socket welding 3)Size ... /2''-48''Our Carbon Steel Flange and Stainless Steel Flange be according to ANSI, DIN, UNI, BS, JIS, KS standards. the materials are ... , PN25, PN40 Flanges;JIS B2220 / KS B1503 FLANGES: 5K, 10K, 16K, 20K, 30K Flanges. Normal Size: DN15--DN2000mm ( 1/2"-48") plate flange