... our good quality and service. 2. Production standard: ASTM A53, BS1387, EN10255, EN10240, EN10220, EN10219, EN39, JIS3. Section type: ... STEEL PIPE/GI LINE PIPETECHNIQUEWELDED/ERWMATERIALQ195,Q215,Q235,Q275, Q345 SIZEOUTER DIAMETER:21.3mm-219.1mmWALL THICKNESS:0.8mm-12mmMax Length:12mSTANDARDASTM,BS1387 ... Big OD:in bulk2,Samll OD:packed by steel strips3,woven cloth with 7 slats4,as per to clients 5. ...