Multiple choice general knowledge science & technology

choose the correct machine which is used to manufacture the tooth brush?

  1. blow molding machine

  2. injection molding machine

  3. Rotational molding machine

  4. compression molding machine
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Toothbrush handles are typically manufactured using injection molding machines. This process injects molten plastic into molds to create the handle shape, which is then cooled and ejected. The bristles are inserted separately into pre-formed holes in the handle.

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