1.high precise dimension,high clean surface in both inside and outside 2.light annealed 3.with ROHS Jiangxi naile copper co.,ltd.we are copper tube manufacturer and suppiler, annual output is 50000MT of copper tube, including LWC copper tube, inner grooved copper tube,pancake coils copper tube,capillary copper tube,straight copper tube,used in the air condition and refrigeration. Till now, we are ...