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IMPACT DEVICE FOR BREAKING LARGE LUMPS OF COAL AND ROCK
IMPACT DEVICE FOR BREAKING LARGE LUMPS OF COAL AND ROCK
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机译:破碎大块煤石的冲击装置
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摘要
the invention относитс to mining the underground way and позвол ет improve дроблени by увеличени impact energy and improve the reliability.the device includes a body, шарнирнс св занный with hydrau
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