Product Description 1. This screw material cylinder is made of 38CRMOALA alloy steel after nitrogen treatment and has best rigidity and corrrosion resistance. 2. The mould head is plated with hard chroming and has screw mandrel structure with uniform and smooth material discharing. And the air-cooled device has labyrinth lype strcture with characteristic as uniform air-out quantity, automatic temperature control and automatic heating. Optional Equipment: 1) Auto Loader 2) Film Surface Treater 3) Die Rotary Device 4) Air Compressor
