我厂在成批生产油头挖盛油槽时,由于孔径很长,公差要求高生产效率低。过去油头进口时,帝、修、反企图卡我们脖子,要一两黄金或一只斩头去尾的猪(?)一只油头。我们遵照毛主席“独立自主、自力更主”的教导,在兄弟厂的协作下,改装了小孔挖槽刀装置。 When the oil production tank was dug in batches of oil production in our factory, due to the long hole diameter, the tolerance requirement was high and the production efficiency was low. In the past, when oil imports were made, emperors, repairs, and counter attempts to card our necks, one or two golds or a pig with pigtails (?) and an oil head. In accordance with Chairman Mao’s “independent, independent, self-directed” teaching, we have restructured the small hole digging knife device under the cooperation of our brother factory.