In 2021, the Glasstec International Exhibition in Dusseldorf, Germany was cancelled again due to the COVID epidemic, but Glasstec's online exhibition focused on Xinglass (Hangzhou Glass Technology) glass tempering machines.

The new generation of QX-GTH glass tempering furnaces is designed to temper all glass types with quality in mind. The software and control system has integrated a new intelligent heating control algorithm, which allows more reliable and flexible control for the heating process. It ensures the heat is evenly distributed with 10% improved accuracy. The heating section of the furnace has adopted a new type of air convection technology, which has realized uniform temperature distribution under different loading modes.

The QX-GTH glass tempering furnace is designed for various applications, including commercial and residential glass, windows and doors, architectural glass, furniture glass, appliance glass, and more.