在批林批孔运动正朝着深入、普及、持久方向发展的大好形势下,于一九七四年七月十五日至七月二十日在第一砂轮厂召开了“磨料行业棕刚玉冶炼工艺技术座谈会”。参加这次座谈会的有来自十个省、市,十六个单位的四十七名工人、干部、技术人员的代表。 Under the favorable situation of the development of the batches of trees and holes in the forest, they are moving towards an in-depth, universal, and long-term development direction. From July 15th to July 20th, 1974, the “abrasive industry brown corundum” was held at the first grinding wheel factory. Smelting Process Technology Symposium." At the forum, there were representatives of 47 workers, cadres and technicians from 10 provinces, cities and 16 units.