This is a documentary and educational video showing you the process of making bowling ball. The first they make a core of the bowling ball by using silicon powder, line stone and mix them using a catalyst, the result is something like chocolate milk, like a hot chocolate. Then after they become firm making hole on them to be putting on the pin in the mold and stay firm. Then they are carrying to hitting them to goes down in the mold. Then carrying to full fill with a mixture. The mixture is a liquid polymer blend harden the bowling ball.
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