1. This machine set adopt bottom blow type to produce polypropylene plastic film with good fransparency and without such phenomena as flow liner, corrugation and fold, etc.

2. This screw material cylinder is elabroately made of 38CRMOALA alloy steel after nitrogen treatment and has best rigidity and corosion resistance.

3. The nould head is plated with hard chromium and has screw mandrel structrue with uniform and smooth material discharging. And the aircooled device has labyrinth type stucture with characteristica as uniform air-jut quantity, automatic temperature control and automatic heating

4. The coiling device adopts torque motor to keep proper tension with even rolling and convenient roll replacing.