"Pressure" pipeline series products are widely used in fire sprinkler, central air conditioning, drinking water, gas, electric wire and other pipeline industries. Compared with traditional products, it can greatly improve the pressure resistance and durability, and can reduce costs and reduce the consumption of raw materials. consumption, leading the industry in energy conservation, emission reduction and technological innovation. It truly conforms to the development direction of "energy saving, low carbon and environmental protection" advocated by the state.