Size: 1/2"-72" Thickness: SCH20-XXS Material: carbon steel, alloy steel,stainless steel Qualification: ISO9001, API, CE Size:from 1/2"-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 ... ;36-88) JB1157-82~JB1160-82,JB4700-2000~JB4707-2000 cast flange