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煤矿机械液压系统通用技术条件
Coal mining machine hydraulic fluid power-General rules relating to system
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煤矿用隔爆型潜水电泵
Flameproof submerge electric pump for coal mine
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煤用有压给料三产品重介质旋流器
Three-product dense-medium cyclone of coal with pressure feed
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ZJ系列行星齿轮减速器
ZJ series planetary gear reducer
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煤矿窄轨矿车安全性测定方法和判定规则
The measuring method and criterion rule for the security of the narrow gauge mine car
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矿用斜井人车技术条件
Technical Requirements of slope manriding car for mine
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煤矿用平巷人车技术条件
Technical conditions for manrider used in drift of coal mine
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矿用光纤接、分线盒
Connecting、adapter junction box for mine optical fiber cables
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煤矿监控系统线路避雷器
Lightning protector for coal mine monitoring and controlling system
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