1.automatic welding machine. 2.Electro-optical technology of Germany 3.CE,ANSI Z87.1 certifications. Helmets used in automatic welding machine1. Model:EH ... . 6. UV/IR protection: up to shade DIN 16 at all time.7. Light state: shade DIN 4.8. Variable shade ... , EF9040,EF9242,EF9848.14. Application:Mig/Tig/argon arc/arc welding/welding.15. Colour: blue,green,silver,black,yellow,red, And beautiful ...