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اخبار و مقالات |
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اخبار و مقالات |
The steps of plastic molding are short, this time is between 3 seconds to 2 minutes and is formed in the following four basic steps. Bolts First, the two halves of the mold must be carefully and securely closed with a clamp, and then the plastic material is injected into the mold. The two halves […]