... F304/304L, ASTM A182 F316/316L Socket weld pipe fittingsupplies high quality valves and fittings for critical services ... Socket Welding Pipe Fittingforged pipe fittingsType1. Elbow, cross, street elbow, tee, boss, coupling, half coupling, cap, plug, bushing, union,swage ... nipple, bull plug, reducer insert, pipe nipple, outlet, ect.2. Socket-weld ...