SOP:Instructor for each process :turning, polishing, drilling ,milling angle ,embossing and so on, is to regulate the controlling method of each procedure, the controlling item, measure of abnormity.

• SOP：车削、铣削、研磨、钻孔、铣角、压花等各工序作业指导书，规范每一工序的控制方法，管控项目及异常对应的措施。