矿用放炮线MHJYV
MHJYV 2X2X7/0.28 矿...
MHJYV矿用电话线
MHJYV加强矿用通信电缆
矿用通讯电缆MHJYV-1*2*7/...
MHJYV 1*4*7/0.28 0...