... OD:21.3mm-609mm 4.Standard :DIN, ASTM,JIS,GB ,BSand so 1.Product :DIN Seamless Steel Pipe2.Thickness :2.11mm ... to clientUsageGas and oil supply ,urban water supplyStandardGB , ASTM ,DIN, JIS,and soQuantity one day500 Ton one daySection formRoundPaymentT/T ... -20daysTechniqueWeldedCorrosion resistancestrongIntensityHighpackingWooden case or as customer’s requirment DIN Seamless Steel Pipe