Industrial chemicals; chemical preparations for the purpose of gas purification; chemical preparations, namely, combusting preparations; chemicals and chemical cleaning preparations intended for the cleaning of equipment for use in gas purification; purifying chemicals
ChemicalsIncinerators; garbage incinerators; gas scrubbers (parts of gas installations); gas scrubbing apparatus; parts and components for all the aforesaid goods
Environmental Control ApparatusInstallation, assembly, maintenance and repair of gas purifying equipment
Building Construction and RepairIncineration of waste; waste treatment; production of energy; destruction of waste
Treatment of Materials