The faucet, also called faucet, is a valve-type device usually used on the water pipe. It also refers to rambling gossip. Water nozzle is a device that can open and close water medium and control outlet water flow and water temperature. It is used for the cold and hot water pipes in the kitchen of the building under the condition that the nominal pressure is not greater than 1MPa and the water temperature is not greater than 90 ℃.