copper crown of isolated white 1.OD 1/4, 3/8, 1/2, 5/8, 3/4 2.Length:3,4,5,7,10,15,20 or longer Copper crown of isolated white1.OD 1/4, 3/8, 1/2, 5/8, 3/42.Length:3,4,5,7,10,15,20 or longer3.Payment:T/T4.Length according to customer required5.Insulated copper tube used for air conditioner6:ISO, RoHS certificated copper crown (isolated white)