A) Finished parts in packing boxes should be stacked neatly and securely.

B) Whether the finished parts are packed separately or not, the inner wall of the packing box/case should be filled with bubble bags, corrugated paper, foam or pearl wool. 

C) The gap between the finished parts and the inner wall of the packaging box/case should be filled with foam or pearl wool. After the packaging box is overturned, there should be no shaking, dumping, etc.

D) The packing list and product certificate should be placed in the packing box, and inspection reports, such as hydrostatic test and hardness test, should be attached when necessary.

E) Ensure that the outer packing box is not damaged.

F) Ensure that the surface of the outer packing box is free of oil stain, and the information and identification are complete and clear.