在全国各地深入学习毛主席关于理论问题重要指示的热潮中,φ2000×21000毫米蒸压釜鉴定会于一九七五年六月十日在常州市召开。参加会议的有十二个单位,共二十五位代表。在毛主席关于理论问题的重要指示指引下,到会代表畅谈了各地抓革命促生产的大好形势,听取了常州市城建局锅炉厂关于试制φ2000×21000毫米蒸压釜的情 In an in-depth study of Chairman Mao’s important instructions on theoretical issues throughout the country, the φ2000×21,000 mm autoclave appraisal meeting was held in Changzhou on June 10, 1975. Twelve units attended the meeting, with a total of 25 representatives. Under Chairman Mao’s important instructions on theoretical issues, delegates at the meeting talked about the excellent situation of grasping the revolution and promoting production, and listened to the situation of the boiler plant of the Changzhou Urban Construction Bureau on the trial production of φ2000×21000 mm autoclave.