1. Prepare the customs declaration form for all imported materials and export products under this manual (the special seal for processing materials is red, and the serial number is marked in the upper right corner with a pen), and check whether the net weight of finished products is upside down, that is, the sum of the net weights of all export products is greater than the net weight of all imported materials. Less than this, it is upside down, and the customs requires enterprises to make relevant explanations. 2. Import and export procedures (warehousing and outbound) and account books of imported materials; 3. Finished product warehousing procedures (warehousing and outbound) and account books; 4. Warehousing procedures (warehousing and outbound) and scrapped account books. 5. Certificate of waste disposal. 6. Pre-entry confirmation form for application approval of 6.H2000 processing trade manual. 7. Application form for enterprise contract verification. 8. List of imported materials and parts. 9. List of export products: 10. Verify the accounting form: 1 1. Agency entrustment agreement for processing trade (manual verification): 12. Official seal of the company: 6 ~ 65438.