A visit — yours or an inspector's — is the surest check on a new supplier. Send a date and what you want to see; the request reaches them as an enquiry you can track.
Nearest Port
Shenzhen Port
Address
No. 2104, 21st Floor, Unit 4, Building 5, No. 666, Guandong 1st Street, High-Tech Zone, China (Sichuan) Pilot Free Trade Zone, Chengdu, Sichuan, China