The product was pitting for gasWhen the product of the line focusThroughout the process of mold, fill the air is retainedDesign products with consistent thickness.Change the location of the injection port.Reduce the injection speed.To prioritize the exhaust position.Reduce the pressure loss of the screw shaftMore tiny light bars on the gas to escape.Mold temperature, melt temperature and injection speed too low.Yet plastic granules.The air escape valve system do not match.Product thickness is too small or too long.The lack of raw materials.Low spraying pressure.The surface of the mold not lustrous should hinder the flow.
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