supply Galvanized GI Pipe SMLS or ERW LSAW ASTM BS1387 Cangzhou Aolong Steel Pipe Co.,LTD Cangzhou Aolong Import and Export Co.,LTD Galvanized Iron Pipe OD: 1/2~8" WT: 0.8mm~12mm Used for low pressure liquid delivery such as water, gas, and oil Packing: small size pipes can be packed by steel strips into bundles and large size pipes can be packed in bulk.