我局各厂制造螺丝环规大多数都没有进行研磨,寿命很短,准确度不够,显然是不合理的。三厂首先进行研磨,虽尚未臻完善,已显著提高了螺丝环规的质量,三厂工具车间卢本昕,许兴发两同志这种改进技术的精神,应该表扬,更值得学习,望各厂能吸取这项经验,广泛推行,在实践中更提高一步。 It is clearly unreasonable that most of the screw ring gauges made by our factory are not ground for a short life and the accuracy is not enough. Three factories first grinding, though not perfect, has significantly improved the quality of the screw ring gauge, three factory tool shop Lu Xin, Xu Xingfa two comrades this spirit of improving technology, should be commended, it is worth learning, hope the plant can absorb this Experience, widely implemented, in practice, one step further.