Mixing and kneading machines and parts therefore, namely, kneading machine modules for vertical feeding, horizontal feeding, side feeding, close modules for melting or blending, degassing modules, and discharge modules used for processing granular polymers, liquid components, powder, flake or fiber constituents used to produce powder coatings or PVC, polyolefins, reinforced engineering plastics, semiconductive cable insulation and for the production of foodstuffs, chemical intermediates, pharmaceutical and cosmetic products; Control systems for mixing and kneading machines consisting of equipment cabinets, high and low power monitors, machine controls and alarms, programmable logic controls to handle process controls and evaluate analog inputs, controls and regulators for heating and cooling equipment, for importing data, transferring data, automating of process sequences and maintaining information relating to production and extruders used for the preparation of plastics, food and chemical intermediates, all sold as a unit with the mixing and kneading machines

Construction repair, namely, construction and repair of chemical plants and equipment