To verify a technical company in Guilin, China, you would follow these steps:

1. **Check the Company Registration**: The first step is to look for the company registration details on the local government’s business information portal or the China Corporate Registration Information System (CCRISS).

2. **Verify the Business License**: Once you find the company’s record, check if they possess a valid business license issued by the city administration.

3. **Examine Company Profile**: Visit the company’s official website or any credible business directory to read about their technical offerings and services.

4. **Check Online Reviews**: Search for customer reviews on platforms like Google, Yelp, or local social media groups.

5. **Contact the Company Directly**: If any doubt remains, you can always contact the company directly through their provided contact information.

By following these steps, you should be able to verify a technical company in Guilin.