To verify a technical company in Gansu, China, follow these steps:

1. **Check Company Registry**: The first step is to access the local business registration authority’s website (for example, http://gs.gov.cn/). You’ll find an online platform where you can search for registered companies by name, industry, or other relevant details.

2. **Verify Registration Certificate**: If the company appears in the search results, click on their profile to view their registration certificate. This certificate should be issued by the provincial government and contain important information such as the company’s legal status, registration number, and business scope.

3. **Check Company Background**: Apart from the official documents, you can also consider checking the company’s online reputation through platforms like Google, Baidu, or industry-specific forums.

By following these steps, you’ll be able to verify a technical company in Gansu effectively.