air conditioner copper pipe 1)Copper tube:OD:1/4,&3/8 ... 6,7,10, air conditioner copper pipe Twin/pair insulated(isolated) copper tube/pipe Our product have got the CE ... ,R404A,R507C etc.6,PE insulation pipe:I.D.from Φ8 to Φ22.7,PE insulation pipe:thickness from 8mm to ... 10mm.8,Character:Anti-UV,good heat resistance,low water absorption9,Insulation pipe can ...