We Sina Company Limited is specializing in the design, manufacture and assembly of SIM unlock card, Fixed wireless phone, USB flash drive.

Our professional R&D and QC teams ensure high quality products with excellent performance and safety at competitive prices. Currently, our products are selling well in Europe, America and Southeast Asia.

Our manufacturing and sales team work hand-in-hand to assure prompt delivery, high quality and comprehensive services. All orders no matter large or small are welcomed. We sincerely hope to establish long-term business relationships with clients at home and abroad.

We are the only manufacturer which produce SIM unlock card, unlock mobile phone models at best.

For details, please surf our business website and feel free to contact us.