To verify a technical company in Fengcheng, a systematic approach can be taken as follows:

1. **Company Information Check**: Begin by accessing the official Fengcheng municipal government or relevant industrial authority website. There, you should find a database or search function where companies can be verified.

2. **Legal Documents Review**: Next, look for any public records or documents related to the company. This could include registration certificates, licenses, and permits issued by the local authorities.

3. **Online Presence Analysis**: Verify if the company has an active online presence, such as a website, social media accounts, or business directories.

4. **Customer Reviews and Feedback**: Check customer reviews and feedback about the company to gauge its reliability and performance.

If you follow these steps carefully, you should be able to verify a technical company in Fengcheng.