... /4", 3/8", 1/2", 5/8", 3/4" Material: according to the customer's requireme Insulated copper tubes are widely applied ... , EN-12735, JISH-3300, GB/T-17791(copper tube) Insulated Material: PE Character: Anti-UV, good heat resistance, low water absorption ... .length=50m) Insulated tube can be made with black rubber material. Insulated tube can be printed with black letter. The two ...