在我的左小臂上,有一块黄豆大小的伤疤。每当我给新工友们讲安全生产常识时,我都会挽起袖子给大家讲一讲这块伤疤的来历。 那是好多年前的事了,当时我在车间当装配钳工。我们安装的一批部件需要用冲子锤击装配,平时都是用黄铜棒作冲子,因为铜材质地较软,不会划伤零部件,锤击时也 On my left arm, there is a soy-size scar. Whenever I talk about safe production common sense to new workers, I will roll up my sleeves to tell you about the origins of this scar. That was a long time ago when I was assembling fitters in the workshop. We install a number of components need to use hammer punch assembly, usually with brass rods for the punch, because the copper texture is soft, will not scratch parts, hammering also