蓝色安全护套矿用通信电缆对 2对 5对 10对 20对 30对 50对 80对 矿用通信电缆 MHYV MHYAV MHYA32 MHYV MHYAV MHYV32 MHYAV32-30*2*0.5 30*2*0.6 30*2*0.7 30*2*0.8 30*2*0.9 30*2*1.0 MHYV MHYAV MHYV MHYAV MHYV32 MHYA32 20*2*0.5 20*2*0.6 20*2*0.7 20*2*0.8 20*2*0.9 20*2*1.0 MHYV MHYAV MHYV MHYVR MHYVP MHYVRP 2*2*7/0.28 2*2*7/0.25 2*2*7/0.30 2*2*7/0.37 2*2*7/0.43 2 MHYV MHYVR MHYVP MHYV MHYVR MHYVP MHYVRP 1*4*7/0.28 1*4*7/0.25 1*4*7/0.30 1*4*7/0.28 1*4*7/0.37 MHYV MHYVR MHYV MHYVR MHYVRP MHYVP 1*2*7/0.28 1*2*7/0.25 1*2*7/0.30 1*2*7/0.37 1*2*7/0.4