Machines and their parts for the chemical industry and for the cement, coal, mineral and metal industry, namely, aerators, belt conveyors, belts for conveyors, compressed air pumps, disintegrators, earth moving machines, engines or motors not for land vehicles, grinding machines, heat exchangers as parts of machines, mine borers, mud catchers and collector machines being part of mine borers, milling machines for the treatment of ore, pneumatic transporters, pneumatic tube conveyors, regulators as parts of machines, rolling mills, power operated separating machines, shredder machines for industrial use, sieves a machines for industrial use, sieves as parts of machines for industrial use, sifters as machines for industrial use, sifting installations as machines for industrial use, air condensers in the nature of steam condensers, steamrollers, stone grinding machines, suction machines for industrial purposes, vibratory screen separators for industrial use; comminution machines and their parts, in particular cone crushers and roller crushers for the cement, coal, mineral and metal industry; mills in the nature of roller mills, hammer mills, ball mills, roller plate mills and vertical mills for the cement, coal, mineral and metal industry and their parts; presses, in particular roller presses and briquetting machines; machine parts, namely, mill stones and annular casings with and without hard bodies for milling or pressing rollers; separating machines and their parts for separating fine bulk goods, in particular wind, cascade and rod basket sifters; sorting machines and their parts, in particular wet sorting machines, jigging machines, flotation machines and magnetic graders

Electric systems and their parts for remote control of industrial procedures, instrumentation and control devices including control systems for machines in the nature of frequency converters and computer programs and programmable logic controls to determine speed and power consumption, and process automation systems

Heat exchangers and their replacement parts, in particular cyclone heat exchangers not being parts of machines; counter current flow calcining machines and their parts for the transformation of mineral raw materials, in particular for calcining limestone; furnaces and their parts for industrial purposes, in particular rotary kilns and their parts for the cement industry and for mineral aggregate preparation; oil burners for industrial kilns and rotary kilns and for industrial pre heaters for preheating raw meal in the cement production process; cooling conveyors and their parts for cooling hot bulk goods, in particular hot cement clinker, in particular stepped coolers and reciprocating slat coolers

Construction, installation and placing into service, repair, maintenance and servicing of burners; structural and civil engineering; plant construction, in particular cement works, coal and ore dressing plants and metal works; construction, installation and placing into service, repair, maintenance and servicing of machinery and equipment for cement works, coal plants, mineral and smelting works

Mechanical and structural engineering services, in particular for the planning, construction, selection, compilation and dimensioning of machinery parts for the cement, coal, mineral and metal industry together with conception and programming of process automation systems; technical consulting and project planning for plant construction, in particular for the cement, coal, mineral and metal industry; drawing up of expert technical opinions in connection with technical, geological and scientific expert reports, in particular for the cement, coal, mineral and metal industry in the nature of geological surveys, technical surveys; land surveying; services of a property developer, namely, technical preparation of building projects in the nature of design of industrial plants; physics research featuring energetic calculation and simulation of industrial processes, firing systems and heat exchangers together with the calculation and simulation of mechanical force distribution systems in static and dynamic installation parts; services of a technical measuring and testing laboratory, in particular materials testing and evaluation of the pollution and dust emissions of industrial plants; services of a chemical laboratory, in particular analysis of building materials; materials testing procedures, in particular pulverizing stones and minerals and dust sifting in the nature of testing raw materials, material testing, grinding and sifting for testing purposes; drawing up geological and scientific expert reports; scientific research in the fields of environment protection, chemistry, technical development, machine construction and the dressing and preparation of mineral raw materials for scientific and technological applications