... ,ERW galvanized steel pipe 2,Delivery time:10-15 days 3,MOQ:5 tons 4,Certificate:ISO,BV,Soncap 5,mild steel Hot ... Gi welded steel pipeZinc coated:280-320g/square meter or 320-400g ... %by TT in advance,balance against before shipment.TypeGalvanized steel pipe/ GI pipe/galvanized pipe Thickness0.6-12 mmOuter diameter16-273mmLengthMax 16metersStandardBS, ASTM , ...