Size: 1/2"-72" Thickness: SCH20-XXS Material: carbon steel, alloy steel,stainless steel Qualification: ISO9001, API, CE, Size:from 1/2" to 72" Thickness:SCH20, SCH30, SCH40, STD, SCH80, SCH100. SCH120, SCH160. XXSMaterial:carbon steel, alloy steel,stainless steelQualification: ISO9001, API, CE,Packing:wooden cases & palletsSpecial design available as the requirements of customerStandard:ANSI B16. ...