Contact the TESTEX Sales Team. If you have any questions, please contact us by the following methods, or send a message using the contact form below. We usually respond within 12 hours, or faster. Email: . Tel: +86 769 2329 4842. Fax: +86 769 2329 4860. Address: NO.3, tang Industrial Dt, WanJiang, , 523000, P.R. China.