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在无产阶级文化大革命的推动下,粉煤灰砖的生产和应用有了很大的发展,有些城市,如北京市,株洲市粉煤灰砖的产量在墙体材料中已占有较大比重。产品质量初期由于缺乏经验,质量一度不够稳定,随后稳步上升,不少工厂都能稳定在100号以上。但是由于“四人帮”的严重干挠和破坏,一些工厂一度不抓生产管理,操作不正常,产品质量下降,有的厂
Under the impetus of the proletarian cultural revolution, the production and application of fly ash bricks have made great progress. In some cities, such as Beijing and Zhuzhou, the output of fly ash bricks has occupied a larger proportion in wall materials. Due to the lack of experience in the early stage of product quality, the quality was not stable enough and then steadily increased. Many factories were able to stabilize on the 100th or more. However, due to the serious interference and destruction of the “Gang of Four”, some factories did not pay attention to production management at one time, and the operation was not normal, and the quality of the products declined.