We are a professional manufacture for auto darkening welding helmet. Although we provide products for some other companies, like trading company for many years, we have some more than 8 years technicians and engineers, can offer some solutions on your welding trouble and produce according to your items parameter. Our welding helmet Switching Time and Light Shade DIN 4 and Dark Shade and DIN9-13 through German import machine testing... And we produce batch so price are competitive. Welcome your free contact! Crystal Welding helmet are designed to protect the eyes and face from sparks, spatter, and harmful radiation under normal welding conditions.