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 materials 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 sold as a unit; 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 a unit; metal working machinery installations comprised 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; metal working machinery installations comprised of drawing machinery, stretching machinery, stuffer box crimping machinery, fiber cutting machinery and baling press machinery for the production of cut staple fibers