MHYV1*4*7/0.52煤矿用信...
铁路信号电缆PTY23 电缆10*2...
矿用信号电缆/MHY32矿用信号电缆
MHYV矿用信号电缆-PUYV
仪表信号电缆DJYP3VP3
仪表信号电缆DJYP3V