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WENZHOU CHUTIAN IMP.& EXP.CO.,LTD
Auto Darkening Welding Helmet
Auto Darkening Welding Helmet Model Galaxy3000
Main Technical Data:Filter size 110X92X11mmWindows size 90X40mm 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 dark