一九八四年四月十九日至二十日,河北省冶金工业厅在唐山召开了马耐厂新产品高铝堇青石制品鉴定会。省内外有关二十一个单位的二十九名代表参加了会议。该产品是陶瓷工业生产中用的一种工具架子砖,于八○年试制以来,已在18个企业中试用。通过几年的试用证明,该产品质量稳定、经济效益显著。如唐山陶瓷厂使用该 April 19, 1984 to 20, Hebei Metallurgical Industry Hall held in Tangshan Ma resistant plant new products high aluminum cordierite product appraisal meeting. Twenty-nine delegates from 21 units inside and outside the province attended the meeting. This product is a kind of tool shelf brick used in the production of ceramic industry. Since it was trial production in 1980, it has been used in 18 enterprises. After several years of trial proved that the product quality and significant economic benefits. Such as the use of the Tangshan Ceramics Factory