... helmet 1.abs material,yellow,red,blue,black,white 2.ISO 9000 3.antiflaming,antistatic 4.mining,industry,construction Construction hard ... .Envionment TemperatureLow:-20°C High:50°CValid time2 yearsCertificateLA certificate. ISO 9001:2000M.O.Q.500PCSLaberSticker &Silk PrintingColourRed,blue,black, white ...