The thickness of the relatively thin fan to have a relationship with the thickness of the product. Usually, the maximum thickness of the fan-shaped port does not exceed 80% of the thickness of the product. If the product is too thin – 0.8 mm-thickness, then spray ports can choose is 0.7 mm. The width of the port propeller is usually from 6 mm to 25% the width of the plates. For those big product width usually equal to the width of the mold.
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