Melt-spinning machinery for the production of yarns, fibers or tows made of thermoplastics and parts of such machinery, in particular raw material storage containers, raw material dryers, extruders, mixers, spinning pumps, spinnerets, spin finish units all sold as components of the aforesaid machinery; storage machinery for deposit of tows made of thermoplastics and parts of such machinery, namely, reels, can traversing units, cans, can conveyors all sold as components of the aforesaid machinery; drawing machinery for conveying and guiding threads, fibers or tows and parts of such machinery, namely, delivery units, draw rollers, godets all sold as components of the aforesaid machinery; stretching machinery for stretching of threads, fibers, or tow and parts of such machinery, namely, stretching units, godets, heaters for draw rollers and godets all sold as components of the aforesaid machinery; stuffer box crimping machinery for crimping of yarns, fibers or tows made of thermoplastics and parts of such machinery, namely, crimping rollers all sold as components of the aforesaid machinery; fiber cutting machinery for cutting threads, fibers or tows made of thermoplastics and parts of such machinery all sold as components of the aforesaid machinery; baling press machinery for pressing cut staple fibers and parts of such machinery all sold as components of the aforesaid machinery; installations of melt spinning machinery, drawing machinery, stretching machinery, stuffer box crimping machinery, fiber cutting machinery and baling press machinery for the production of cut staple fibers; installations of drawing machinery, stretching machinery, stuffer box crimping machinery, fiber cutting machinery and baling press machinery all sold as integral components of the aforesaid machines for the production of cut staple fibers