Machine tools, machines for the plastics industry and parts therefor, namely, machine tools for forming, swaging, polishing, cutting, drilling of plastics; extrusion molding machines; compounding machines, namely, extrusion machines for mixing of unprocessed plastics, for introducing additives into plastics, for transformation of unprocessed plastics; mixing machines; Plastic processing machines in the nature of dosing machines; conveying apparatus, namely, machines for conveying solids; comp...