| http://www.w3.org/ns/prov#value | - In the working course of hammer crusher, due to the impact and friction materials, which inevitably lead to the wear and failure of the hammer head, liner, grate bars and other parts, the hammer is the most important wear parts, the consumption is great, you need to reserve a large number of spare parts, which not only takes up the funds, but also affects the normal production of enterprises.
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