... 2500N rescue succor helmet*material:ABS*antiflaming.antisepsis*light weight,erosion protection*Max wallop :2500N 1,Rescue ... sharp objects, corrosion, heat radiation, reflective insulation, light and other functionsSemi-helmet design, with a clear ... resistant, flame retardant, Resistance to electric shock).2, the main performance parameters:a.The maximum impact ... rescue succor helmets with light weight