YD/T 1173-2001.Flame - retardant and Fire Resistant Flexible Cables for Power Supply System of Commu...
YD通讯标准
YD通讯标准
YD通讯标准
YD/T 1173-2010 通信电源用阻燃耐火软电缆
YD/T 1173-2010.Flame - retardant and fire resistant flexible cable for power supply system for telec...