我厂生产一种大透投,原工艺是采用一把砂子,一勺水的落后古典法加工,劳动条件差、又张又界、不时长、质量不易保证。采用了第六砂转厂的人造金刚石简形砂轮使l一效提高一倍,保证了产品欣量,改善了劳动条件。我厂有许多另件需开定位槽,过去如r·个槽需10、 I plant a large penetration, the original process is to use a sand, spoonful of water behind the classical method of processing, poor working conditions, and Zhang and world, from time to time, the quality is not easy to guarantee. Using the sixth sand transfer plant artificial diamond-shaped grinding wheel to l efficiency doubled to ensure the product welcomed the improvement of working conditions. I plant a lot of other pieces need to open the positioning slot, in the past as r · slot 10,