MHYV 20X2X7/0.28 10X2X7/0.28 MHYV28
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
煤矿用阻燃通信电缆