... /BLIND/SOCKET WELDING/THREADED/ LAP JOINT Flange factory price Hot sale !!!1. 1/2"-78", DN15-2000 2. SLIP-ON, WELDING NECK, BLIND FLANGE ... , BLIND, SOCKET WELDING, THREADED, LAP JOINT3) Size of Flange: 1/2"-78" , DN 15- DN2000 4) Material of Flange: Carbon Steel ... Flange: A105,SS400,SF440 RST37.2,S235JRG2,P250GH,C22.8 Stainless Steel Flange: F304 F304L F316 ...