... steel elbow 90 deg,carbon steel elbow 1/2'' to 106'' LR SR carbon steel elbow high quality carbon steel elbow API CE Carbon Steel ... Elbow 1. Material: stainless steel 2. Size range: FROM ... , ISO, JIS, DIN, BS,GB, SH, HG,QOST,ETC.CE and certification:ISO9001:2000 , API , BV , SGS, LOIYDApplications range ...