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• The Use Of Pet Preform Temperature Adjustment Skills تمويل الأعمال التجارية
• The use of Pet Preform temperature adjustment skills. The blowing mold is usually heated by the hot oil circulation method, and the blowing mold is adjusted in three cycles: the bottom of the bottle is cooled. The bottom of the bottle is kept at a low...أكثر منThe use of Pet Preform temperature adjustment skills. The blowing mold is usually heated by the hot oil circulation method, and the blowing mold is adjusted in three cycles: the bottom of the bottle is cooled. The bottom of the bottle is kept at a low temperature (10 ° C ~ 30 ° C) to prevent the unstretched bottom portion from being overly crystallized and whitened.  
• • preform nicole (صاحب)
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