煤矿用阻燃信号电缆

矿用通信电缆线经

矿用通信电缆线经为 0.5 0.6 0.7 0.8 0.9 1.0 
mhyv mhjyv mhybv mhya32 mhyyv mhyy32 
：mhyvr mhybv mhyv32 mhyvrmhyvp mhybv mhyvr32
mhyvr 2x7/0.52+2x7/0.28 mhyv 20x2x7/0.28 10x2x7/0.28 5x2x7/0.282x2x7/0.28 
mhyvr 2x7/0.52+2x7/0.28 
mhyv 20x2x7/0.28 10x2x7/0.28 5x2x7/0.28 2x2x7/0.28 
20x2x7/0.37 10x2x7/0.37 5x2x7/0.37 2x2x7/0.37
20x2x7/0.43 10x2x7/0.43 5x2x7/0.43 2x2x7/0.43
20x2x7/0.52 10x2x7/0.52 5x2x7/0.52 2x2x7/052