TET's e-mail address has been changed to: email@example.com starting from today. The current e-mail address firstname.lastname@example.org will expire after July 19th, 2020. During the mail conversion period, the new and current mailboxes are both available.
In the meantime, TET has upgraded the official website as: http://www.tet-triplex.com
Thank you for your cooperation. TET will continue to provide customers with the best quality service and professional technology in the future.