在毛主席革命路线指引下,无产阶级文化大革命以来,唐山冶金矿山机械厂生产有了较快的发展。连续多年超额完成国家计划,产值、产量、劳动生产率、利润等指标,都超过历史最好水平。产品产量上升幅度比较大,1974年比文化大革命前最好年份1965年增长1.9倍。在新工人不断增加的情况下,全员劳动生产率74年比65年增长12％。产品品种有了显著变化,过去仅能生产皮带机等中小型产品,现在发展到能生产全套650 Under the guidance of Chairman Mao’s revolutionary path, since the proletarian cultural revolution, the production of Tangshan Metallurgical Mine Machinery Plant has experienced rapid development. Over many years of continuous completion of the national plan, the output value, output, labor productivity, profit and other indicators have exceeded historical best levels. The increase in product output was relatively large. In 1974, it was 1.9 times higher than the best year before the Cultural Revolution in 1965. With the increase of new workers, the total labor productivity increased by 12% in 74 years compared with 65 years. The product variety has changed significantly. In the past, only small and medium-sized products such as belt conveyors were able to be produced. Now it has been developed to produce a full range of 650 products.