... name carbon steel bw seamless sch40 pipe fittings size 1/2"-48"(DN15-DN1200) material stainless steel , carbon steel , alloy steel ... standard GB/T12459,GB/T13401,ASME B16.9,SH3408, SH3409,HG/T21635,DL/T 695,SY/T 0510,DIN 2615. welded ... and worldwide supplier of pipe fittings made-in-China, our products include elbows, pipe reducers, tees, big bends, caps made from carbon steel and stainless steel ...