1. Slide block universal radial drilling machine pulley-block luffing gear 滑座式万向摇臂钻床（起重机）升降支臂用滑轮组
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2. Application of Windlasses and Pulley-block in Boiler Drum Installation 卷扬机滑轮组系统在锅炉汽包吊装中的应用