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国家专利产品“高压料层粉碎立式磨矿机”(032187807)是专利产品“立式磨矿机”(ZL942239148)的延续,是经过长达10多年艰苦研发取
National patented product “High pressure bed crushing vertical mill ” (032187807) is a patented product “Vertical mill ” (ZL942239148) of the continuation of the more than 10 years of hard research and development to take