Feature：
1.This screw material cylinder is elabroately made of 38CRMOALA alloy steel after nitrogen treatment and has best rigidity and corrosion resistance.
2.The mould head is plated with hard chromium and has discharging.and the aircooled device has labyrinth type structure with characteristic as uniform air-jut quantity,automatic temperature control and automatic heating.
OPTIONAL EQUIPMENT：
1）AUTO LOADER
2）FILM SURFACE TREATER
3）DIE ROTARY DEVICE
4）AIR COMPRESSOR
