[custom_adv]
Papion
A ballpoint pen dispenses an oil-based ink by rolling a small hard sphere, usually 0.5–1.2 mm and made of brass, steel, or tungsten carbide. The ink dries almost immediately on contact with paper.
Check Also
Infrastructure, Access, and Urban Resilience
With recent missile attacks and heightened tensions after the start of Operation Roaring Lion, air-raid …