To verify a technical company in Yulin, a city located in the northern part of Shaanxi Province, China, you can follow these steps:

1. **Check Official Website:** The first step is always to visit the company’s official website. This will ensure that you are looking at an authentic company.

2. **Verify Registration Documents:** Check if the website displays any registration documents such as business licenses, registration certificates, or company codes.

3. **Check Company Profile:** Read through the company’s description and services offered. Verify that these align with industry standards.

4. **Review Customer Reviews**: While not definitive, customer reviews can provide insight into the company’s performance and reliability.

5. **Contact the Company Directly**: If you have any doubts or questions, it’s best to contact the company directly for clarification.

Remember, verifying a technical company requires research and attention to detail.