... our good quality and service. 2. Production standard: ASTM A53, BS1387, EN10255, EN10240, EN10220, EN10219, EN39, JIS3. Section type: round, ... 0.8mm-8.5mm Length:12m PRODUCTHOT DIP GALVANIZED STEEL PIPE/GI LINE PIPETECHNIQUEWELDED/ERWMATERIALQ195,Q215,Q235,Q275, Q345 SIZEOUTER ... :21.3mm-219.1mmWALL THICKNESS:0.8mm-12mmMax Length:12mSTANDARDASTM,BS1387-1985,GB/T3091-200, JIS, DIN, EN, AS1074, EN39, ...