... SR Elbows, 180 Deg. LR Elbow, 180 Deg. SR Elbow, 45 Deg. LR Elbow, 45 Deg. SR Elbow 2, Thickness: SCH20, SGP, STD ... the advanced technology, production equipments and inspection systems, mainly manufacture elbow, tee, reducer, cap, flange, cross, nipple, socket fitting, ... we are qualified and permitted to produce pressure pipeline unit for oil, chemical industry, and electricity group. Meanwhile, we ...