38mm PET Beverage Preform
https://www.petpreformfactory.com/product/pet-preform/38mm-32g-53g-pulsating-mouth-pet-beverage-preform/
Bottle Mouth Size Weight in Grams Reference Capacity Length（mm） Number of Cartons Remark or Note
38mm pulsating orifice 32g 550ml-600ml 100 603pieces/Box Nutrition Quick Line Port, Temperature-Resistant Port