... blowing, an air cooling stage is introduced to reduce the level of PET residual stress and increase the rate of PET ... bottles can stand hot filling without deformation. D.Advantages of Rotary Automatic Stretch-Blow Molding MachinesD.1. High productivity: 1700pcs/cavity ... demand, our technologists successfully design and manufacture a series of rotary plastic blow moulding machines: DMK-R4, DMK-R6, DMK- ...