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采煤机液压元件试验规范
Test specification for hydraulic components used in shearer
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边双链刮板输送机用刮板
Scraper bars for the twin outboard chain conveyors
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矿用圆环链用开口式连接环
Shackle type connector units for mining round link chain
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矿用隔爆型硫化机
Explosion proof vulcanizer for coal mine
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矿用套筒致裂岩体原位应力测试仪技术条件
The equipments specifications of the crag body stress test set by means of sleeve compression fracture method in mine
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矿用超低频电场透视仪技术条件
The specifications of the electric field perspective instruments with extra-low frequency in mine
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煤矿用单体液压锚杆钻机
Single hydraulic bolting machine in coal mine
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钢绞线液压剪
Hydraulic cutter for steel wire strands
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矿用锚索张拉机具
Pulling device for prestressing anchorage in coal mine
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