1
Water treatment chemicals in the pulp and paper industries; namely, chemicals for the control of bacterial and fungal slime; oxygen scavenger chemicals for use in industrial, municipal and waste water treatment; chemical adsorbents for specialized refrigerant dehydration and filtration; industrial water treatment chemicals, namely corrosion inhibitors, oxygen scavengers, boiler treatments, scale inhibitors, biocides, waste water coagulants, and waste water flocculants; chemicals for industrial use, namely, corrosion inhibitors for boilers; chemicals for treating boiler feed water; synthetic ion exchange resins for general industrial uses, including, but not limited to, water softening agents, water de-ionization agents, water de-alkalization agents, desiccants, chelating agents, catalysts, and chromatographic agents
37
Supervision of construction work for water treatment equipment; installation; maintenance; repair and drive management of water treatment equipment; boiler cleaning and repair; construction of water disposal and waste water treatment facilities; rebuilding machines that have been worn or partially destroyed
40
Purification of soil and groundwater contaminants; water treatment; waste treatment; recycling of ion exchange resin; recycling of membrane filter; boiler making; destruction of waste and trash; paper finishing; paper treating; recycling of waste and trash; sorting of waste and recyclable material; incineration of waste and trash; custom manufacture and production of water treatment equipment
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