How appropriate is the stretching time of pet bottle blowing?

In the range of 0.2 to 0.5. According to the information of pet bottle blowing manufacturers, the setting parameters of different bottle types are different. The drawing parameters are usually in the range of 0.6 to 1.5, and the pre-blowing time is usually in the range of 0.2 to 0.5. As long as the requirements of customers are met, the shorter the blowing time, the better. The biggest feature of PET bottle blowing machine is to separate the drying tunnel from the bottle blowing, which speeds up the bottle blowing and improves the output.