A65-L Model full automatic multi-layer obstruct extrusion blow molding machine --- including  A65D-L4  three  layers  double station tetra-die machine, this model is mainly used  in  producing  permeating  proof  3-layer  compounded  bottle  for  packing pesticide,chemical,auto oilbox and others whose demands of  permeating  proof  is high. 3  layers  of  compounded  bottle  are separately: outside layer HDPE, middle layer is binder,  the inside layer is EVOH (separating layer).  The  machine reduces  the thickness of middle layer and inside layer (from 0.03mm to 0.05mm) as far as possible through fine control under the condition of no reducing the characteristics of permeating proof.To reduce the bottle cost greatly.The compounded bottle has advantages, such as light, not easy to breaking and others. It can take the place of glass bottles, it has wide market prospect.  This model is full-automatic process with low noise,saving energy,high efficiency,safe operation,easy maintenance and other benefits.