The quality of the bottle depends on the supplied preform, which is divided into two types when injection molding, the one is long rubber mouth, the other is a short rubber mouth.Most manufacturers in China are likely to choose short plastic mouth preform, and overseas countries are prone to choose long plastic mouth.
Due to the bottom of the bottle is cut off, the tension is uniform distribution in the blowing process, In this way, the quality of the blown bottle will be better. Besides, the cut part can be recycled, which will help save the cost of raw materials. Nowadays, oil resources are increasingly scarcity, Chinese manufacturers will be more inclined to long plastic mouth preform.
