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　　1. Shearing: refers to the process of obtaining rectangular workpiece by shearing machine.

　　2. Blanking: refers to the process in which the workpiece is cut by LASER or punched by NC punch.

　　3. Blanking: refers to the process in which the shape of a product is obtained by using a die on a common punch or other equipment.

　　4. Punching: refers to the process of processing holes by ordinary punches and dies.

　　5. Bending: refers to the process in which the workpiece is formed by a bending machine.

　　6. Forming: refers to the process of deforming a workpiece by using a die on a common punch or other equipment.

　　7. Punching: also known as "flanging", refers to the process of turning the round hole edge on the workpiece by using a die on a common punch or other equipment.

　　8. Tapping: refers to the process of processing internal threads on the workpiece.

　　9. Reaming: refers to the process of turning small holes into large holes with a drill or milling cutter.

　　10. Sinking hole: refers to the process of processing tapered holes on the workpiece in order to cooperate with connectors such as countersunk head screw.

　　11. Pressure riveting: refers to the process of firmly pressing riveting nuts, riveting bolts or riveting nut columns on the workpiece with a punch or hydraulic press.

　　Riveting: refers to the process of first sinking the workpiece, then firmly pressing the riveting nut on the workpiece with a punch or hydraulic press.

　　Rammer: refers to the use of similar riveting process. The technological process of firmly connecting the connecting parts such as rivet nuts (POP) to the workpiece with a drawing pistol

　　14. Riveting: refers to the process in which two or more workpieces are closely connected with each other by means of a riveting gun and a pulling nail.

　　15. Riveting: The process of connecting two or more workpieces face to face with rivets. If riveting the countersunk head, the workpiece should be sinked first.

　　16. Punching convex hull: refers to the process of forming a convex shape of the workpiece with a die in a punch or hydraulic press.

　　17. Punching and tearing: also known as "punching bridge", refers to the process of forming a bridge-like shape of the workpiece with a die in a punch or hydraulic press.

　　18. Printing: refers to the process of using a die to punch out words, symbols or other impressions on a workpiece.

　　19. Cutting angle: refers to the process of cutting the workpiece angle by using a die on a punch or hydraulic press.

　　20. Punching mesh hole: refers to punching mesh hole on workpiece with die on ordinary punch or CNC punch.

　　Flattening: refers to the process of transferring a workpiece with a certain shape to flattening.

　　22. Drilling: refers to the process of drilling a workpiece on a drill or milling machine with a drill bit.

　　Chamfering: refers to the process of processing the sharp corners of the workpiece by means of dies, files, grinders, etc.

　　Leveling: refers to the process of leveling the workpiece before and after processing, using other equipment.

　　25. Returning teeth: refers to the process of restoring the second screw teeth on the workpiece with teeth attacked beforehand.

　　26. Pasting protective film: refers to the process of protecting the surface of the workpiece by using a film that can protect the surface of the workpiece.

　　Tearing protective film: refers to the cleaning process of the protective film on the surface of the workpiece.

　　Correction: refers to the process of adjusting the workpiece that has been processed and formed.

　　29. Heat shrinkage: refers to the process of using heating equipment (hot air gun, oven) to tighten the plastic covering the workpiece.

　　Labeling: refers to the process of sticking labels to the designated position of the workpiece.

　　31. Wire drawing: refers to the process of using wire drawing machine and abrasive belt to treat the surface of the workpiece.

　　32. Polishing: refers to the process of polishing the workpiece surface with polishing equipment.

　　33. Heat treatment: refers to the process of special treatment to improve the hardness of the workpiece.

　　34. Deburring: refers to the process of removing the edges of the workpiece by means of grinding machine, file and other tools during sheet metal processing, so as to make the workpiece processing smooth and smooth.

　　35. Argon arc welding: refers to the process of joining workpiece and workpiece by argon arc welding machine at the edge or seam of workpiece. It is also divided into intermittent welding, full welding, etc., to be clearly marked on the drawings.

　　36. Collision welding: also known as "spot welding", refers to the process of face-to-face welding of workpieces by a collision welding machine.

　　37. Plant welding: refers to the process of firmly welding the plant welding screw on the workpiece with the plant welding gun.

　　38. Welding and grinding: mainly refers to the process of smoothing and smoothing the weld scar of workpiece by means of grinding machine, file and other tools.

　　39. Pretreatment: refers to the process of removing oil, rust and increasing the coating (such as phosphating film) on the surface of workpiece and cleaning it with electrolytic solution before painting or powder spraying after sheet metal processing.

　　40. Gray scraping: refers to the process of using atomic ash to make up for defects on the surface of the workpiece, such as welding cracks or pits.

　　41. Scraping and polishing: It mainly refers to the process of surface polishing with a flat grinder or abrasive cloth for the workpiece after scraping.

　　42. Oil injection: refers to the process of uniformly spraying paint on the surface of the workpiece with a special spray gun.

　　43. Powder spraying: refers to the process of uniformly spraying powder on the surface of a workpiece with a spray gun.

　　44. Screen printing: refers to the process of forming words or patterns on the surface of a workpiece by penetrating a special mesh with a special ink.

　　Electroplating: refers to the process of plating a layer of metal on the surface of a workpiece for the protection or beauty of the workpiece.

　　46. Oxidation: refers to the process of forming oxide film on the surface of the workpiece for the protection or beauty of the workpiece.

　　47. Sandblasting: refers to the process of surface treatment of workpiece by sandblasting machine.

　　47. Assembly: refers to the process of assembling more than two workpieces together.

　　48. Packaging: refers to the process of protecting workpieces and facilitating transportation.

　　49. Others: breakage, drawing (punching), back pressure, tooth extraction (tapping after punching), salad (sinking) through hole.