Safety helmet -Shell Material :ABS -6 cooling vent on the top of helmet -Meet CE EN 397 standard -adapt to industrial wo Safety helmet: WR1016 Standard: EN397:1995 Features:Good rigidity, good thermal resistance and good-looking. Material & structure of shell: 1.Material:FRP Structure of helmet liner:Four points Double inserting linings Lock type of back hoop: 1.Style X: Turning knob(rachet ...