Aluminum Shoulder Protecting Firefighting Safety Helmet

Technical parameters:
1)Cap shell is made from imported polyamide fiber material, top hat shock acceleration ≤ 150gn; 
2)shock acceleration of front cap ≤ 400gn; 
3)biggest shock acceleration of cap side ≤ 400gn; 
4)Cap rear shock acceleration ≤ 400gn; 
5)The maximum impact force ≤ 3780N; 
6)After the electrical insulation performance, test leakage current ≤ 3mA; 
7)Helmet left and right horizontal field is greater than 105 °. 
8)Weight ≤ 1300g.