... can stand hot filling without deformation. D.Advantages of Rotary Automatic Stretch-Blow Molding MachinesD.1. High productivity: 1700pcs ... fast speed Stable function: i). blowing system adopts Germany valve and cylinder, which has stable and accurate stretching speed ... demand, our technologists successfully design and manufacture a series of rotary plastic blow moulding machines: DMK-R4, DMK-R6, DMK ...