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...
En el primer tanque de batalla principal, la velocidad inicial del proyectil perforante de armadura de energía cinética de alta velocidad de aleación de tungsteno era tan alta como 1700 ~ 1800 m / s, y podía penetrar el armo homogéneo de 800 mm ...
