JB-T 6471-1992 起重机电控设备 产品型号编制方法

K62JB/T647119921992-08-061993-01-01()11992-08-06JB/T647119921993-01-01()JB/T647119922JB/T647119923JB/T647119924JB/T64711992JB/T64711992*2100044*88012301/16X/XXXX,XXX19XXXXX19XXXXX1XXXXXX.XXXXXXX