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2008

China

 
  • auto-darkening welding helmet
    View windows size(mm):90*40mm or 98*40mm
    Ultraviolet ray transmittance rate:313—365nm-6%
    Infrated ray transmittance rate:780—1300nm
    1300—2000nm
    Dark shade range:DIN9—13 ; ; varibble
    Light shade
 
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