Shanggui answer your question here:

 Because Shanggui is professional manufacturer of solar accessories for more than 11 years. Shanggui has excellent raw suppliers and strong engineering team for solar prodcut.

1. Our team: prompt response, one to one service. 

2. Experience: 11years exporting and history

3. Our factory cover more than 3000m2

4. Customized: strong R & D team to meet the various needs.

5. Quality control : Each customer  corresponds to a quality management supervisor

6. Annually output: 200MW 

7. Partener cooperation : Yingli, Blue sky