The core function of the radiator hose is to transmit coolant for heat dissipation and circulation, maintain system pressure, and resist extreme temperatures and corrosion. It is typically made of EPDM rubber, capable of withstanding high temperatures up to 150°C and a pressure of 200 kPa, with sealed interfaces to prevent leaks.The core of the radiator water pipe is responsible for delivering coolant, maintaining system pressure, and resisting thermal vibration corrosion. It is primarily made of EPDM, capable of withstanding temperatures up to 150°C and pressures up to 200kPa. The interface is sealed to prevent leakage and cracking.