... :21.3-219mm T.W:2.5-7.5mm certificate:ISO9001-2008 API 5l schedule 80 hot dip galvanized ... 3Mpa, D177.8-323.9mm to 5Mpa Typeschedule 80 hot dip galvanized steel tube Size21.3-219mm(O ... 7.5mm StandardASTM A 53 / BS 1387/GB/T 3091-2001Material08,10,15,20,195-Q235PackagingBundle,bulk in ... rangeliquid delivery, construction, communication, gas,etcPayment terms 30%T/T or L/C Delivery time(15-20 days)According ...