safety helmet

1. Material quality: ABS or PE
2. The cap shell V type arc offends and disobeys the exactly superjacent impingement ability with rude remarks, improving 20%
3. Lathe the button or hasp cap lining
4. In according with GB2811 standard, T1 , T4 and Y are similar to a standard
5. Be fit to have dangerous lieu such as impingement , puncture in any such as petrochemical industry, municipal administration , electric power , building , offshore platform to the head