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What is the pockmark on the surface of PET bottle?

You said that the pet sheet has pits, which should be the quality problem of the sheet, but the general sheet should not have serious pits. It seems that you have pits after plastic absorption, which is related to mold quality, temperature and plate thickness.

1. It is estimated that the drying time is less than 4 hours, the temperature is not high enough, and PET pellets still contain water, which is easy to cause crystal spots.

2. The nose debugging is not good, which is a technical aspect, and the boot master is very important.