JB-T 6488.5-1999 云母带 耐火安全电缆用粉云母带

K15JB/T6488.519991999-08-062000-01-01()IJB/T6488.51999()IIECJB/T6488.51999111999-08-06JB/T6488.519992000-01-01JB/T6488.519992JB/T6488.519993JB/T6488.519994JB/T6488.51999JB/T6488.51999*2100044*88012301/16X/XXXX,XXX19XXXXX19XXXXX1XXXXXX.XXXXXXX