HOT ROLLED GALVANIZED PIPE DIMENSIONS:10-900mm WALL THICK:0.3-80mm CERTIFICATE:ISO 1. Standard: GB/T 3091-2001, GB/T3087,BS1387-1985, DIN EN10025, EN10219, ASTM SCH40/SCH80,ASTM-A532. Grade: 10#-45#, A53(A,B)-A369,Q195-Q3453. Surface Finish: Hot Dipped Galvanized, Electro Galvanized, or Black Size10-900mmWT:1-20mmEnds:Beveled or square cut plastic caped.Othersa) Special design available according ...