煤矿用阻燃信号电缆MHYVR MHY...
MHYV 10x2x0.75矿用通信...
矿用电话线MHYVR1*3*7/0....
电话线MHYV2*2*7/0.3...
矿用电话线MHYVR1*2*0....
煤矿用电缆MHYVR1X4X7/0....