... ),API 6D, DIN3202, ASME B16.25End Connection Std.: ASME B16.5,ASME B16.47, JISB2212-JISB2214, DIN2543-2550,ASME B16.34Main products:1.1pc,2pc ... .Pipe fittings:elbow 45,elbow 90,tee,cross,union,cap,socket,coupling,plug,nipple,bushing etc.3.Quick coupling: type A ... flanges:butt-weld elbow,tee,cap,150-3000LBS flanges etc.5.All kind of metal products,design and develop for customers ...