| 1. | A spring attached to each brake shoe returns it also to its original position, free of the brake drum .
附接在各个制动蹄上的弹簧也将制动蹄拉回原位，不与鼓轮接触。
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| 2. | The improvement of braking drum quality for drawworks
改进钻机绞车刹车鼓质量的方法
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| 3. | Power transmission engineering ; brake drums , main dimensions
动力传输工程.制动鼓.主要尺寸
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| 4. | Brake drum inspection hole cover
闸轮检查孔盖
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| 5. | Bimetallic shoe brake drum
双金属式制动鼓
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| 6. | Brake drum cutting machine
制动鼓切削机
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| 7. | Brake drum cooling rib
制动鼓散热肋
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| 8. | Brake drum dust cover
制动鼓防尘罩
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| 9. | Brake drum dust shield
闸轮防尘罩
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| 10. | Power transmission engineering ; brake drums and brake discs ; technical terms of delivery
动力传动设备.制动鼓和制动盘.交付技术条件
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