7 Extrusion machines for the production of tubular films; extrusion machines for the manufacturing of objects of thermoplastics; production machines for manufacturing of extruded films; production equipment, namely, extruders, die-heads, calibration cages, take-off units, dosing units, winders, conveyor belts and machines for manufacturing of extruded films; vacuum hoisting machinery and conveyors; conveying apparatus for plastic granules and for film webs; blowing machines for compression, suction and for the transport of gases; mono blow film machines, multi-layer blow film machines; Machine parts namely, blown film dies, cooling rings and heat sinks for film tubes for blow film extrusion machines; machine parts, namely, screw extruders and vacuum conveyors for blow film extrusion machines for plastic granules and plastic materials in molten state; machine parts, namely, extruders and blown film dies for blow film extrusion machines; film take-off units and film winders for film extrusion plants; machine parts, namely, oscillating film take-off units as parts of blow film extrusion machines; machine parts, namely, spiral mandrel distributors and pre-distributors as parts of blow film extrusion machines; fans for machine engines, namely, cooling fans for blow film lines, as machine parts; machine parts, namely, turning bars and guide rollers as parts of blow film extrusion machines; machine parts, namely, brush rollers for blow film lines; machine parts, namely, spreader rollers, temperature rollers and cooling rollers for blow film extrusion machines