1.name:carbon steel elbow 2.standard:ASME,GB,DIN,JIS,GOST 3.LR, ... our qualified products,favorable price and considerate services.NAMEElbowsPRODUCTSAmerican standard, Japanese standard, German standard pipe fittings, seamless steel pipe, flange, etc ... or hot galvanizedRADIUS OF CURVATURE1D-1.5DPIPE FITTINGSAmerican standard, Japanese standard, German standard elbow, tee,reducer, pipe cap, flange and ...