• Technology For Bottle Blowing
    Technology For Bottle Blowing

6. Why is the bottom of the bottle white? 

1. The bottom temperature of the bottle is too low.2. The overall temperature of the preform is low.···

　

1. The bottom temperature of the bottle is too low. 

2. The overall temperature of the preform is low. 

3. The pre-blowing time is too early. 

4. The pre-blowing pressure is too high. 

5. The pre-blowing flow rate is too high.

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