Carbon Steel Flange , Slip On Flange Threaded Flange , Blind Flange Socket Welding Flange ... Slip-On, Welding Neck, Blind, Socket Welding, Threaded, Lap Joint and Plate etc.Pressure Ratings:Class 150 ... in producing Slip-On, Weld Neck, Socket Weld, Threaded, Lap Joint and Plate Flanges to ANSI, BS, ... possessed 5-ton Splint Hammer, 2-meter ring rolling machine,1-ton Air Hammer, Heat-treatment equipment, ...