All goods included in Class 12

Blast furnaces, open hearth furnaces; coke ovens; gas ovens; heat storage devices; parts and fittings for these goods; coke quenching equipment; sintering equipment; refuse incinerating equipment; cooling equipment for gases; refractory bricks; plant and apparatus for the processing of drinking, service, cooling and boiler feed water; plant and apparatus for the drying and burning of waste sludge; conveying equipment for ashes; refuse processing equipment; plant and apparatus for the mechanical and chemical and biological purification of sewage or effluents; and parts and fittings for all the aforementioned goods

Refractory materials included in this class, being goods included in Class 19.

All goods included in Cl. 7 excluding turbines, turbine generators, fans, filters, heaters, sludge pumps and controls therefor but including gas generators and gas converters; sealing, charging, levelling and emptying equipment (being machinery) for blast furnaces, for open-heart furnaces, for coke ovens, for gas ovens and for gas generators; conveying equipment for ore, coke, slag; conveyor belts; cleaning equipment (being machinery); tar, ammonia, hydrocarbon, sulphur and phenol recovery plant; distillation and polymerisation plants; and parts and fittings for all the aforementioned goods but specifically excluding tools and equipment used in the food production and food handling industry.

All goods included in Class 9, including physical, chemical, optical, electrical weighing, signalling, monitoring, measuring apparatus, instruments and equipment; and parts and fittings for all the aforementioned goods