资讯

Tungsten's a tough metal. It's super dense with a high melting point. That makes it perfect for drones. It’s used in parts needing strength under heat or stress. Think gyroscopes and rotors. These ...
Most of the talk in the rifle world these days about bullets with high ballistic coefficients, high-magnification ...
The Uttar Pradesh State Tourism Development Corporation Limited (UPSTDC) is organising special heritage walks across five cities of the state, including Varanasi, Lucknow, Prayagraj, Jhansi and Agra, ...