1.Length according your needs; 2. Good qulaity; 3. Higher reliability Specifications:1. Copper tube: O.D. 1/4”,3/8”,1/2”,5/8”,3/4”,2. Length: in 3M,4M,5M,6M,10M,15M,20M, according your needs;3. O.D. of copper tube and thickness could make it according your requirement;4. Quality standard complied: GB/17791-1999, JISH3300,ASTMBB743;5. The copper pipe compatible any gas:R22,R407C,R410A,R134A,and so ...