We can customize Alloy C18200 and C12200 Micropore Copper tube / Brass Tube, have different diameter and thickness. We Specification: Alloy:C18200 Cr 3% CU Purity:97% or C12200,CU purity99%Standard complied: ASTM B-88, EN-1057, ISO9001,1,Outer Diameter: 4mm ~16mm2,Wall Thickness: 0.41mm ~ 10mm3,Length: 5.8m or 12m etc Nominal Standard Size inchOutside Diameter inchWall thickness and tolerances( ...