JB-T 4328.2-1999 电工专用设备 铸造碳钢件通用技术条件

K90JB/T4328.219991999-08-062000-01-01()IJB/T4328.21999()111999-08-06JB/T4328.21999JB4328.219862000-01-01JB/T4328.219992JB/T4328.219993JB/T4328.219994JB/T4328.219995JB/T4328.219996JB/T4328.21999JB/T4328.21999*2100044*88012301/16X/XXXX,XXX19XXXXX19XXXXX1XXXXXX.XXXXXXX