... air conditioner copper pipe 1)Copper tube:OD:1/4,&3/8,&1/2,&5/8,&3/4, (2) Length:3,4,6,7,10, air conditioner copper pipe ... Twin/pair insulated(isolated) copper tube/pipe Our product have got the CE certificate and ... ,good heat resistance,low water absorption9,Insulation pipe can be printed with letter. air conditioner copper pipe & Air conditioner parts