MHYV 1*2*70.28煤礦用通訊電纜礦用通訊電纜MHYV 7×2×70.28價格6/1kV及以下聚氯乙烯絕緣(阻燃、耐火)電力電纜價格濮陽昆明UGF電纜UGF電纜3x25+1x16蘇州MVVR,mvvr電纜MVVR礦用電纜4x10,4x16丹東YHP遮蔽焊把線YHP遮蔽橡套線紹興防淡水電纜JHSB扁線防海水電纜JFHS2022-04-08電纜橡套KVVRP遮蔽電力電纜