ZR-KVVP2什么意思-KVVP KVVP2 KVVP2-22生产厂-天津市电缆总厂一分厂从事屏蔽控制电缆KVVP KVVP2 KVVP2-22矿用通信电缆MHYV MHYAV MHYA32 MHYBV MHYVR MHYVP，矿用控制电缆MKVV MKVV22 MKVV32，市内通信电缆HYA HYA53 HYAC HYV，屏蔽控制电缆供应厂家，铁路信号电缆PTYA22 PTYA23
