Detailed Product Description Welding maskFilter size: 110X90X11mm Ultraviolet ray transmittance rate: 313-365nm<3.4x10-6%Infrared ray transmittance rate: 780-1300nm<0.0027% 1300-2000nm<0.0097%Dark shade range: DIN9-13Light shade number: DIN3Switching time: 1/20000s from bright to darkRecovery time: 0.1s to 0.8s from dark to brightPower supply: solar cellsEye protection: EN379 1/2/1Face protection ...
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