... for garbage bags, vest bags, printing composition SJ-C Rotary Machine Head Film Extruder MachinePerformance and Characteristics These two models of ... , printing composition, fluids packing, etc. Machine barrel and screw arbor of extrusion machine both adopt quality alloy steel,with nitriding ... reeling and unreeling, and easy reel change film extruder machine, film blowing machine,rotary film blowing ...