Fiberglass helmet - helmet protective effect when operating personnel impact of the head by falling objects, the use of a helmet shell cap, cap liner in an instant impact first decomposed into an entire area of ??the skull, and then use various parts of the buffer helmet structural elastic deformation, plastic deformation and structural damage to allow most of the impact force will be absorbed, so that the final effect to reduce the impact of the head of the person to 4900N or less, thus protecting the head of the role of operating personnel. Hat helmet helmet shell material on the overall resistance performance plays an important role. Fiberglass helmet - helmet logo and packaging 1 Each helmet should have the following four permanent signs: A. Name of manufacturer, make, model; B. manufacturing year, month; C. production certification and verification; D The production license number. 2 helmet factory packing, shall each hat liners made of paper or plastic film wrap and then into cardboard boxes. Boxed helmet must be finished. 3 boxes should be marked with product name, quantity, weight, volume and other considerations such as tags. 4 per carton helmets are to be attached manual. Fiberglass helmet - fiberglass helmet standard http://www.botongdianli.net/