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概述DCK型磁石式矿用调度电话总机是正海市中国自动电讯器材厂1963年的新产品.系根据煤矿中特殊要求而设计的矿井调度通信设备.本机为台式,容
Overview DCK magnetic mine scheduling telephone switchboard is Zhenghai City, China Automatic Telecommunications Equipment Factory 1963 new products. Department of coal mine in accordance with the special requirements of the design and scheduling of communications equipment. The machine is desktop, capacity