All goods in this class, including electro-precipitators in this class for use in gas cleaning; and parts of and fittings for such goods as are included in this class

All goods in this class, including: installations for collecting dust from industrial process gas streams and from industrial gas for air cleaning operations; electro- precipitators in this class for gas cleaning; chemical engineering plant for use in the control of environmental pollution; gas cleaning plant; fluidised bed apparatus for treatment of gases or solids; calcination apparatus; roasting apparatus; drying apparatus; incinerators; installations for cleaning water or effluents; cooling apparatus; evaporative cooling towers; gas valves and discharge valves; filters; and parts and fittings in this class for all the aforesaid goods, but not including ignition devices or ignition apparatus

Engineering contracting services all relating to installations for collecting dust from industrial process gas streams and from industrial gas for air cleaning operations, chemical engineering plant for use in the control of environmental pollution, electro-precipitators for removing dust particles from gases, gas cleaning machines, fluidised bed apparatus for the treatment of gases or solids, calcination apparatus, roasting apparatus, drying apparatus, incinerators, installations for cleaning water or effluents, cooling towers, gas valves and discharge valves, and for filters.