Mechanical and instrumented Charpy tests had been performed before plates in all three states were tested for resistance to armour piercing 7.62×39 mm API BZ projectiles, on the proofing ground laboratory space.
Mechanical and instrumented Charpy tests had been performed before plates in all three states were tested for resistance to armour piercing 7.62×39 mm API BZ projectiles, on the proofing ground laboratory space.