... Usage:transportation of gas, water, oil SPECIFICATIONS:1.OD:10-1200mm2.WT:2-50mm,Length:2-12m3. ... water transport,Building,Machinery,Traffic,Aviation,Oil development ect.OD TolleranceD<50mm,+-0.5mm ,D>50MM,+-1%WT ... below plain ends,2" above beveled endsMethord140mm below cold drawn,140mm above hot rolled,273mm above hot expandPacking6 steel ... wrap,loading beltPRODUCT PHOTO: Big straight seam steal pipe