Thermal glass for welding mask use.

焊接的热的玻璃戴面具使用。

The utility model relates to an energy-saving environment-friendly welding helmet, which consists of a solar charger, an air filter, goggles and a health gauze mask.

一种节能环保电焊帽，本实用新型由太阳能充电器、空气过滤器、护目镜、卫生口罩组成。

Reverse engineering and NC machining of welding die for shadow mask;

提出一种利用图像分析方法进行荫罩网孔检测的新技术。