电话电缆hya 20对100对电缆 HYA KVVP

MHJYV-矿用电话电缆MHJYV HYA KVVP

煤矿用电话线新型号MKVV MKVV22

煤矿用电话线MHYV22 MHYA32 20X2X

MHYV32矿用电话线MHYV32MHYV32

铠装电话电缆-HYA23

矿用电话电缆.

MHYV斜井用电话电缆MHYV多芯电缆

铠装矿用电话电缆MHY32铠装电缆

MHYAV煤矿用防爆电话线

矿井防爆电话电缆PUYVR

矿井用电话电缆MHYVR-3*2*0.75