Compare measurements of the channel lead -Circular Type recommended use, this category allows material flowing best. -Type and intermediate types can also be used. However, the flow of plastic to crush the mold is restricted rather than by design, tends to reduce the cooling of the material in the trench system. -Types of rest are not recommended due to the optimal flow and cools the material quickly. If the material cools quickly, the material in the mold has no compression fit, thus causing the shrinkage phenomena or some other disabilities.
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