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同家粱矿为保证盘区安全运输,设计出一种常闭式阻车器。这种阻车器构造简单合理,能够有效杜绝各类“跑野车”事故的发生。该阻车器所采用的主要材
The same home beam mine to ensure the safe transport panel, designed a normally closed car stopper. This simple and reasonable construction of the car stopper, can effectively eliminate all kinds of “ran wild car” accident. The main material used by the car stop