1. Must be processed according to the craft order

2. The viewing angles for reviewing drawings are not distinguished, and the parts processing is reversed.

3. Confirm the text translation of the drawing file and check the text description of the drawing frame

4. The size of the semi-finished product is not confirmed

5. The parts are not rough, easy to deform, and low efficiency.

6. Multi-drawing processing is not carefully distinguished, and the part drawing is easy to be confused

7. Size input is not confirmed, size processing error

8. The height of the stopper must be safe to prevent parts from flying out

9. The direction of the parts is not confirmed when clamping, and it is easy to install backwards

10. Test the main body size after pulling the pull tab

11. There is no margin for the polishing position, which does not meet the requirements of finish

12. The parts are not processed according to the process, and the subsequent processes are difficult to process

13. The grinding wheel should be raised to a safe height to avoid collision with the knife

14. The parts are protected against scratches, collisions and rust

15. Deformation of parts and untreated burrs

16. Self-inspection is required after processing (shape, appearance, size, chamfering and leakage processing)