mhyav电缆30对价格50对价格mhyav电缆30对价格50对价格MHYAV矿用通信电缆|mhyav矿用监测电缆名代号
煤矿用通信电缆 ................................... MH
铜质线芯.............................................. 省略
聚乙烯绝缘 ........................................... Y
铝一聚乙烯粘结护套.................................... A
聚乙烯内护套 ......................................... 省略
编织铠装.............................................. B