获得MA 标志产品;井筒信号电缆|井下电缆 井下电缆MHYA32(5-100对) MHY32 (2-19对)MKVV32(2-61芯) 获得煤安证的产品:井筒信号电缆 MHYV (1-10对) MHYAV (5-100对) MHYA32(5-100对) MHY32 (2-19对) MHYVP (2-10对) MHYVRP(2-10对) MKVV (2-61芯) MKVV22(2-61芯) MKVV32(2-61芯) 煤矿用阻燃通信电缆MHYV MHJYV MHYBV MHYA32 MHYYV MHYY32 煤矿用阻燃信号电缆:MHYVR MHYBV MHYV32 MHYVR MHYVP MHYBV MHYVR32 煤矿用阻燃控制电缆:MKVV MKVV22 MKVV32 MKVVR MKVVRP