... Carbon Steel Size:1/2"-48"Model Number:5" Brand Name:GongYuan Packaging details:wooden cases or pallet Quick DetailsMaterial:Carbon Steel ... ThicknessSch5-Sch160XXSStandardISO,ANSI,,JIS,DIN,GBMaterialCarbon steel,stainless steel,alloy steelApplications RangePetroleum,chemical,,power, ... resistance with black painting3aal the product processingare made under ISO9001 2000 strickly carbon steel elbow