As the necessary equipment of the mine, it is the important power hydraulic component of the special injection equipment of the "external single hydraulic prop" and "hydraulic prop" in the underground support operation of the coal mine, and it is also an indispensable tool for the replacement and maintenance of the support operation. HARTMANN plunger pump is the most ideal emulsion pump in the United States. It has special structure, unique material in heat treatment and excellent pollution resistance. Its quality guarantee period in Europe and the United States is 3 years. It is the only product with the longest shelf life for hydraulic components in the world.
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