kevlar hard armor plate ceramic ballistic plate bullet ...
Hard armor plate: Bulletproof level according to America NIJ III /IV and Russia GOST R50963-96 2-5.It can resistant steel core armor piercing shell shoot from automatic rifle such as AK47,AK74.M14,M16,M2,CBД(SVD)sniper rifle,usually used together with soft armor,can improve ballistic level of body armor greatly.