... 8", 3/4" Material: according to the customer's requirements Insulated copper tubes are widely applied in the vehicle, ships, buildings, chemical ... ASTM B-280, EN-12735, JISH-3300, GB/T-17791(copper tube) Insulated Material: PE Character: Anti-UV, good heat resistance, low ... rubber material. Insulated tube can be printed with black letter. The two ends of tubes can be covered with copper head. Payment ...