... , HGJ, SHJ, JB, ANSI, ANTM, MSS, JISSize1/2"-48"Angles45 Deg, 90 Deg, 180 DegWall thicknessSCH20, SCH30, SCH40, STD, SCH80, SCH100, SCH120 ... : 2000 International Quality System.Our main products include elbows, reducers, tees, flanges, big elbows,socket pipe, concrete pumps and pipes, concrete pipeline ...