Colored or colorless PC,PVC mask Can be replaced Head, face the dual role of protection Application in hazardous ... box frame, Lightweight, strongConnected by a spring hoop with helmetCan be replaced, with head, face the dual role of protectionApplies to flying debris ... a variety of helmets, four visual adjustment, can be matched with a variety of side screen ART.NOTA-3 MaterialPC Colorcolored ...