hebei zhazhidu water conservancy machinery co., ltd. is a production enterprise specializing in the integrated service of water conservancy machinery products research and development, manufacturing and sales. it specializes in the production of various specifications and models of waste cleaning machines, hydraulic dams, screw opening and closing machines, winch opening and closing machines, cast iron gates and other products.
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screw opening and closing machine-winding opening and closing machine manufacturer-cast iron gate price-