JB-T 6296.3-1992 汽轮机管道附件 氩弧焊多焊衬环

K54JB/T6296.319921992-06-261993-01-01()111992-06-26JB/T6296.319921993-01-01()JB/T6296.319922JB/T6296.319923JB/T6296.319924AJB/T6296.319925JB/T6296.31992JB/T6296.31992*2100044*88012301/16X/XXXX,XXX19XXXXX19XXXXX1XXXXXX.XXXXXXX