无产阶级文化大革命,促进了人的思想革命化,促进了生产。客车窗止铁以前是生铁的,其格槽虽已铸出,但仍要用銼刀加工,劳动强度很大,效率低,质量也差。在无产阶级文化大革命中,该零件改为轧钢的,格槽用铣床加工,但使用的夹具一次只 The great proletarian cultural revolution has promoted the revolution of human thought and promoted the production. Passenger car window iron in the past is pig iron, although its grid slot has been cast, but still use the file processing, labor intensity, low efficiency, poor quality. In the Great Proletarian Cultural Revolution, the part was changed to rolled steel and the cell was machined using a milling machine, but the fixture used was