1.Material: Copper 2.High quality, competitive price 3.Available more of size 4.Copper manufacturer 1) Material :red copper C122002)Temper: hard or half hard3) Standard complied: ASTM B-88, EN-1057, GBT-18033,4) Specification: Outer Diameter: 4mm ~200mm Wall Thickness: 0.41mm ~ 6mm Length: 5.8m or 3m etc5) Reference: Standard ASTM B88 Nominal Standard Size inchOutside Diameter inchWall thickness ...