JB-T 4328.10-1999 电工专用设备 球墨铸铁件通用技术条件

K90JB/T4328.1019991999-08-062000-01-01()IJB/T4328.101999()111999-08-06JB/T4328.101999JB4328.119862000-01-01JB/T4328.1019992JB/T4328.1019993JB/T4328.1019994AJB/T4328.1019995JB/T4328.101999JB/T4328.101999*2100044*88012301/16X/XXXX,XXX19XXXXX19XXXXX1XXXXXX.XXXXXXX