【摘要】 介绍了多绳摩擦式提升机上的两个重一要零件固定决、压块由金属材料制成改用非金属材料的研究与应用行况，着重论述了试验研究过程及在应用研究成果后在降低生产成本、提高生产效率和节能降耗方面所取得的巨大经济效益。更多还原

【Abstract】 The paper introduces the two important parts in a lnulti-rope frictionalhoist, which are Ned blocks and compacts made of metallic material ,and studies that the non-metallic material could substitute for the metalThe testing and studying process is emphatically described in the paper An enterprise will be gained an tmmense economic efficiency by reducingthe cost. improving the efficiency and sving the energy after applying the results.更多还原