1,Outer Diameter: 4mm ~1000mm 2,Wall Thickness: 0.41mm ~ 20mm 3,Length: 5.8m or 12m etc 4.Copper Pipes Specification: Alloy:C11000 CU Purity:99.9% or C12900,CU purity99.8%,AG0.8%Standard complied: ASTM B-88, EN-1057, ISO9001,1,Outer Diameter: 4mm ~1000mm2,Wall Thickness: 0.41mm ~ 20mm3,Length: 5.8m or 12m etc4,Oxygen-free Copper Pipes Square Copper Tubes and Square Copper Pipes