3 ms·
Exactly, so this sentence is incorrect: > Ballpoint pen tips are microscopic tungsten carbide ball held inside ultra-thin steel sockets
by margalabargala 4mo ago
Exactly, so this sentence is incorrect:
> Ballpoint pen tips are microscopic tungsten carbide ball held inside ultra-thin steel sockets
- OneDonOne 4mo agoYes indeed, you are correct. My mistake.