... welding 3)Size:1/2''-48''Our Carbon Steel Flange and Stainless Steel Flange be according to ANSI, DIN, UNI, BS, JIS, KS ... .47 Standard: 150LBS, 300LBS, 600LBS, 900LBS, 1500LBS. Welding Neck Flange, Slip-On Flange, Blind Flange; DIN FLANGES: DIN2527, DIN2573, DIN2576, DIN2633, DIN2566 DIN2543 ... , 30K Flanges. Normal Size: DN15--DN2000mm ( 1/2"-48") flat flange pn16