The PET plastic bottles are cheap, with good transparency, airtightness and compressive strength, and are easy to shape. More and more beverages, such as juice, non-carbonated beverages, iced tea, coffee, sports drinks, purified water, pasteurized milk, etc., must maintain good antibacterial properties during the filling process. In recent years, PET bottles have been increasingly used for these beverages. The total output of PEI bottles in the world is growing at an annual rate of 7%, and the growth rate of PET bottles in China is also very rapid. https://ibottling.com/what-is-the-development-status-of-rotary-pet-bottle-blowing-machines-in-china/