Joke Collection Website - Mood Talk - How is the ball on the tip of a ballpoint pen made?
How is the ball on the tip of a ballpoint pen made?
Just like bearing steel balls, what is ground by ball mills is stamped and cut with steel wires, or formed and forged into small squares, and then ground by the plane of the machine.
Tungsten alloy is advanced to ensure corrosion resistance and wear resistance. The websites of China Light Industry Federation and China Light Industry Federation may have relevant information. At present, there is no Ministry of Light Industry, and some cities have light industry bureaus. It is divided into a light bureau (manufacturing) and a second light bureau (business).
At present, there are dozens of stations for producing ballpoint pens in Germany, each of which costs RMB 3 million.
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