The work of the bottle blowing machine is divided into two steps. The first step is to heat the plastic granules and then put them into the injection molding machine to make the preforms. The second step is to put the finished preforms into the fully automatic bottle blowing machine, heat the preforms, and then put the preforms into the bottle blowing mold for blow molding. Common polyester (PET) plastic bottles, such as mineral water bottles, carbonated beverage bottles, juice bottles, etc. are mostly produced by stretch blow molding machines.
