Group items tagged

water pump seals manufacturers water pump seals suppliers water pump seal price mechanical pump seals suppliers

Urban underground pipe network is an important part of urban infrastructure, including urban water supply, drainage, power supply, gas supply, and communications. The underground pipe network is the "blood vessel" and "nerve" of the city, as well as the lifeline of the city. With the rapid development of urban construction, China has increased the development and utilization of underground space in recent years, and more and more underground pipe networks have been laid in cities.