玩弄少妇秘书人妻系列,欧美人与动交视频在线观看,在线 国产 欧美 亚洲 天堂,高中女无套中出17P

What Is Tungsten Alloy Prefabricated Fragments?

Tungsten alloy prefabricated fragments usually refer to tungsten alloy cylindrical fragments (tungsten pillars) or tungsten alloy spherical fragments (tungsten balls) used in landmines, grenades and other ammunition, which can effectively kill the enemy's effective forces, with sizes ranging from 2mm to 100mm.

Due to its high density and strong armor-piercing ability, cylindrical tungsten alloy prefabricated fragments have become one of the main killing elements for air defense, anti-radiation, and surface killing, and have been widely used.

Comments are closed.

Address: 3F, No.25-1 WH Rd., Xiamen Software Park Ⅱ, FJ 361008,China Copyright ? 1997 - 2025 CTIA All Rights Reserved
Phone:+86-592-5129696,+86-592-5129595;    Email: sales@chinatungsten.com
舊版