To verify a trade company in Hejian, a process similar to that for verifying businesses anywhere follows these steps:

1. **Company Registration**: Look for the official registration documents of the company, which should be available from the Hejian municipal administrative bureau or local business registration offices.

2. **Website Check**: Verify if the company has an official website, and check its domain name (e.g., “.com” or “.hejian.cn”) against the company registry.

3. **Industry Reputation**: Research the company’s reputation in the industry it operates. This can be done through online reviews, industry publications, or by contacting relevant professional associations.

4. **Financial Stability**: If possible, check the financial records of the company, either through public filings with local authorities or through an independent financial advisor.

By following these steps, you should be able to verify a trade company in Hejian.