1)OD: 1/2''-12'' 2)WT: 0.8mm-12mm 3)Length: 3-12m 4)Standard ... recognition from many customers since our good quality and service. 2. Production standard: ASTM A53, BS1387, EN10255, EN10240, EN10220, EN10219, ... 219mm WT:0.8mm-8.5mm Length:12m PRODUCTBlack STEEL PIPE/painted/powder coatedTECHNIQUEWELDED/ERWMATERIALQ195,Q215,Q235,Q275, Q345 SIZEOUTER ... to clients Hot-rolled seamless A53 GR. B steel pipe