RS-485通讯线缆 MODBUS总线电缆2*2*0.75信号传输;矿用阻燃4芯单模通信光缆MGXTSV-4B/6B/8B/12B/16B/24B;WDZ-HYAT53 300×2×0.4 通信电缆HPVV 50×2×0.5配线电缆;485通信线CANBUS 2X1.5 RS485通讯线2X0.5 2X0.75