Tig Weld Like A Pro Weld Mask
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It’s a common misconception that the lens shade number corresponds to the amount of protection that is provided to the eyes, and hence the higher the number, the better the protection. In reality all quality welding lenses filter out 100 percent of the harmful ultraviolet (UV) and infrared (IR) wavelengths to protect eyes. The number just denotes the level of shade of the lens. View Related Article
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