1. Demand communication: The factory conducts preliminary communication with customers to understand their customization needs, product specifications, quality requirements, etc.

2. Quotation and plan formulation: According to customer needs, the factory develops detailed customized plans and provides corresponding quotations. After the customer confirms the plan, the two parties enter the contract negotiation stage.

3. Contract signing: After both parties reach an agreement, a formal contract will be signed to clarify product specifications, quantity, price, delivery date and other terms.

4. Advance payment: The customer pays the advance payment as agreed in the contract, and the factory begins to arrange production.

5. Manufacturing and quality control: The factory produces and manufactures according to customer needs, and conducts strict quality control during the production process.

6. Product inspection and packaging: After completing production and manufacturing, the factory inspects the products to ensure they meet quality standards and then packages them.

7. Delivery and logistics tracking: The factory arranges delivery and provides logistics tracking information to ensure that customers can understand the status of the goods in a timely manner.

8. After-sales service: The factory provides after-sales service to solve problems encountered by customers during use.