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  • The processing method of the ball valve

    1: electroplating 2: Cold Spraying 3: thermal spraying 4: spray welding 5: nitriding. Electroplating: The process of plating a thin layer of other metals or alloys on some metal surfaces by electrolysis principle. So as to improve corrosion resistance, wear resistance and enhance the beauty. Cold...
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  • The domestic water pump industry is promising but has defects to be improved

    In recent years, China’s water pump industry has developed rapidly. Not only has the production level of pump valves been greatly improved, but also its output has been greatly increased. But more embarrassing is, small and medium sized and private pump valve enterprises in the process of m...
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