Pet water bottle molding die is a type of plastic injection molding die that is specifically designed for producing water bottles made of PET plastic. This type of molding die is used to shape melted PET material into the desired shape of a water bottle. The process of creating these molds involves designing and engineering the mold to meet specific requirements, then building the mold using high-quality materials and state-of-the-art manufacturing techniques. These molds usually come in different sizes and configurations to produce different sizes and shapes of water bottles.