Big Diameter Welded Steel Pipe LSAW OD 325--1220mm WT 8--80mm ... ISO and API Bevel PE BE Big diameter steel pipe(LSAW)StandardsGB/T3091-2008,GB/T9711.1, API5L ... ASTM A53GrB,L245, X42-X70,API5L GrB, etc.ApplicationsStructural pipe, liquid transportation, conveyance of oil and gas, petroleum transportation ... packed in hexangular bundles with strong steel strip and plastic caps to pretect the both ends or as ...