To verify a technical company in Changyuan, China, you can follow these steps:

1. **Check the Legal Registration:** Begin by looking for the company’s registration information. You can typically find this on the company’s official website or through the local administrative department.

2. **Review the Company Profile**: Visit the company’s profile page on business directories like Baidu Business, or LinkedIn (if it’s a technology-related firm).

3. **Check Online Reviews**: Read reviews from previous clients or industry experts. This can provide insights into the company’s performance and reputation.

4. **Contact the Company Directly**: If possible, attempt to contact the company directly through their provided contacts. A professional response will indicate credibility.

By following these steps, you should be able to verify the technical company in Changyuan effectively.