MHYV通信电缆5×2×0.75
MHYV-2*4*7/0.43mm-...
国标mhyvrp1×4×7/0.52...
MHYV16*2*7/0.37矿用通...
矿用通信电缆MHYVP-6X2X7/...
阻燃通信电缆MHYV-20*2*0....