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

1. **Research Online**: Begin by searching the company’s name on reputable websites like the State Administration for Market Regulation (SAMR) or the Chinese Business Registry (CBR).

2. **Company Registration Document**: If the company is registered, check the registration certificate, which should be available online.

3. **Verify Address**: Locate the company’s address listed in their profile or on government records. Verify that it matches with Hejian’s area.

4. **Check Industry Specific Certificates**: Technical companies operating in specific sectors may require additional certificates from relevant authorities. Make sure these are present and valid.

By following these steps, you can effectively verify a technical company in Hejian.