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礦用本安型JCB4便攜式甲烷檢測報警儀
適用場所本儀器結構合理、使用簡便，適于有瓦斯爆炸和煤與瓦斯突出危險的場合個人配帶，進行井下瓦斯測量與檢測的常備儀器；可應 		2021-08-10
新一代智能型JCB4便攜式甲烷檢測報警儀
一、適用場所JCB4便攜式甲烷檢測報警儀是新一代智能型檢測儀器，適用于煤礦井下測量甲烷含量，如采掘工作面，回風巷道、機電峒室 		2021-05-31
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