carbon steel pipe flanges 1.Size:1/2"-78", DN15-2000 2. ... .Certifaction:CE,ISO,TUV 4.All standard carbon steel pipe flanges1) Product Name:carbon steel pipe flanges2) Type of Flange: SLIP-ON, WELDING ... A105,SS400, SF440 RST37.2,S235JRG2,P250GH,C22.8 Stainless Steel Flange: F304 F304L F316 F316L 316Ti5) Surface Treatment: Anti- ... tons9) Supply Capacity: 24,000 Tons per Year carbon steel pipe flanges