Bulletproof vests, also known as bulletproof vests, are used to protect the body from bullets or shrapnel. A bulletproof jacket mainly consists of a jacket and a bulletproof layer. The sheath is usual...
Alumina Fine Ceramics material is not uncommon. This precision ceramic material applies the chemical properties of alumina, but does not combine alumina with ceramics. Compared with other materia...
Dans le premier char de combat principal, la vitesse initiale du projectile perforant de blindage à énergie cinétique à grande vitesse en alliage de tungstène était aussi élevée que 1700 ~ 1800m / s, et il pouvait pénétrer 800mm armo...
