... groove elbow, card sleeve elbow,double bearing the bend, flange elbow, reducer elbow, tooth bend, stamping elbow inside ... DN500),welded fittings 1/2" - 48" (DN15 - DN1200) Wall thickness/pressure rateing: SCH5S-SCH160 Angle:45 degree, 90 degree, 180 degree BUTT WELDED ... inspection systems, mainly manufacture elbow, tee, reducer, cap, flange, cross, nipple, socket fitting, expansion joint and other ...