The radiator water pipe transports coolant to maintain heat dissipation, resistant to -40 ° C~130 ° C corrosion, leak proof under pressure of 0.3-1.5MPa, smooth and reduced resistance on the inner wall, strong interface adaptation, and durable vibration resistance.The radiator water pipe transfers coolant to assist in temperature control. It is made of high and low temperature resistant materials, with a pressure range of 0.4-1.6MPa and no leakage. The inner wall is smooth and the resistance is reduced. The interface is compatible with a wide range and stable against vibration.