... . 2.the use of advanced automotive painting process. 3.UV/IR protection:DIN 16 4.Variable shade: 9-13. ... 1. Model Of Uv Face Shield : EH-224/EF9040.2. Fire resistanc: yes ... , two lithium batteries be changed.10. Switching time Of Uv Face Shield:a) Light to dark: 1/25,000s ... /argon arc/arc welding/Gas welding.15. Colour of Uv Face Shield: blue,green,silver,black,yellow,red, And ...