The writing method of foreign authorized domestic production labels usually follows the following points:

1. Authorization mark: indicate on the label that the product is authorized to be produced abroad, you can use such as Words such as “Authorized by [foreign brand]” or “Produced under license from [foreign brand]”.

2. Brand identification: Clearly display the name and trademark of the foreign brand on the label to ensure the authenticity and popularity of the product.

3. Standard symbols: According to the requirements and standards of specific products, use corresponding symbols to represent the quality, safety and other characteristics of the product, such as CE certification marks, RoHS symbols, UL certification marks, etc.

4. Production information: Indicate the production date, batch number and other production-related information of the product for traceability and quality control.

5. Barcode: You can use internationally accepted barcode identifiers, such as EAN, UPC, etc., to facilitate the identification and management of products in sales and logistics.

It should be noted that the above are only general writing guidelines and are not fixed. The specific labeling method may be affected by product type, national regulations, brand requirements, etc. It is recommended to communicate with foreign brands or relevant institutions when conducting foreign authorized production to ensure that labels comply with relevant requirements and regulations.