PET bottles are the main packaging form of carbonated beverages. Zhuhai Zhongfu and Shanghai Zijiang are PET bottle suppliers for Coca-Cola and Pepsi carbonated beverages. Both companies have dozens of sets of imported two-step equipment, which use centralized manufacturing of preforms and disperse bottles to supply the production methods of the nearest Coke filling plant. Since the price of carbonated beverage bottles has been completely transparent, the profits are very thin. Bottle-making companies mainly win by volume, and the use of high-speed equipment becomes inevitable. In the production of preforms, 72-cavity injection molding machines have been used. Zhongfu and Zijiang two bottle-making plants also began to adopt more flexible and pragmatic equipment procurement methods and began to cooperate with different bottle-making equipment suppliers. High-speed blow-molding machines with bottle blowing speeds up to 20,000 bottles per hour have increased their installed capacity. The carbonated beverages represented by Coca-Cola and Pepsi are still the largest varieties of beverages produced in China. Although the growth rate has slowed down, the absolute number still continues to increase each year.
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