Aluminum clad copper pipe is used as the connection pipe for the indoor and outdoor air conditioners, to weld aluminum pipe and copper pipe together can make out aluminum clad copper pipe,this kind of pipe has good performance ,and it is now the best substitution for the copper pipe used before,it can largely reduce the production cost,about 40%, the welding technology has already applied the national monopoly.it is very trustable.if you are interested ,please contact us.