... 316l 3)Certificate:ISO9001,API,ABS,BV 4)good price 90 degree 3d elbow,seamless elbow,carbon steel pipe fittings elbow sch40We are Hebei Gee ... flanges,bends,forged fittings,SS pipes,ERW,LSAW,SSAW.tube elbow ,bend(45 or 90 degree and LR or SR and carbon ... reducing tees, caps, concentric and eccentric reducersRadius Of Curvature1D-10D ANSI,ASME,API5L,DIN,JIS,BS,GBSurface treatmentblack paint, varnish, rust ...