... steel elbowSize: from 1/2" to 72"Angles: 45 Deg, 90 Deg, 180 DegThickness: SCH20,SCH30,SCH40,STD,SCH80,SCH100.SCH120,SCH160.XXSStandard ... requirements of customerQualification: ISO9001, API, CE,Packing : wooden cases & pallets 180 deg carbon steel pipe elbow