Flexible copper tube-high quality 1.Low price ... take the most advance technology in copper process, Rolling-Casting. Inner-grooved Copper Tube is of high cleanliness ... pin holeStandardAISI, ASTM, BS, DIN, JIS, ENMaterialRed copper, brass copper, and so onOutside Diameter4mm~60mmWall Thickness0.25mm~5.0mmLengthas ... 26346801FAX.+86-022-26346802Websitewww.tjzdgl.com.cn Flexible copper tube-high quality