Wenzhou Manufacturing High-quality Development Conference

Today, freshwater is scarce and accounts for only 2.5% of all water resources worldwide. According to the United Nations (UN) projections, by 2025, a quarter of the world's population will suffer ...

Ⅰ. Introduction of nickel ball valveNickel ball valve has the advantages of low friction coefficient, small operating torque and leakage rate up to zero leakage. A variety of valve seat materials are...

Valves are control components in pipeline fluid delivery systems. It is used to change the passage section and the flow direction of the medium, and has the functions of diversion, cut-off, throttling...