7
MACHINES, NAMELY, CONVEYING EQUIPMENT, INCINERATION GRATES, FLUIDIZED BED INCINERATORS, INDUSTRIAL STEAM BOILERS FOR HEAT RECOVERY AND TRAY DRYERS THAT USE A HEATING MEDIUM NOT IN DIRECT CONTACT WITH THE PRODUCT TO BE DRIED, SOLD AS A UNIT, FOR WASTE TREATMENT AND BIOSOLIDS PROCESSING
11
WASTE WATER PURIFICATION UNITS AND WATER TREATMENT EQUIPMENT, NAMELY, MEMBRANE FILTRATION UNITS AND AEROBIC AND ANAEROBIC BIOREACTORS
37
CONSTRUCTION OF FACILITIES USED FOR BIOSOLIDS PROCESSING, WATER AND WASTE WATER PURIFICATION AND TREATMENT, AND THE TREATMENT, PROCESSING, RECYCLING AND DISPOSAL OF WASTE AND RESIDUES; INSTALLATION, MAINTENANCE AND REPAIR OF MACHINES AND EQUIPMENT USED FOR BIOSOLIDS PROCESSING, WATER AND WASTE WATER PURIFICATION AND TREATMENT, AND THE TREATMENT, PROCESSING, RECYCLING AND DISPOSAL OF WASTE AND RESIDUES; PROVIDING CONSULTANCY IN RELATION TO THE AFORE-MENTIONED SERVICES
40
ENVIRONMENTAL REMEDIATION SERVICES, NAMELY, WATER, WASTE WATER, BIOSOLIDS, WASTE AND RESIDUE TREATMENT; RECYCLING OF WASTE AND WASTE WATER; PURIFICATION AND TREATMENT OF METALS; PURIFICATION OF AIR AND FUMES
42
SCIENTIFIC RESEARCH; INDUSTRIAL RESEARCH AND DESIGN; TECHNOLOGY CONSULTATION AND RESEARCH IN THE FIELD OF ENVIRONMENTAL REMEDIATION AND THE DESIGN OF EQUIPMENT USED FOR WASTE AND WATER TREATMENT