Air filtering and particulate extraction installations for use in coal power plants, namely, filtration screens used in coal power generation combustion treatment systems, namely, in catalytic units within coal power plants to prevent buildup of particulate matter on the catalyst module; none of the foregoing being related to heavy machinery, engines, mining, earth moving, oil and gas, or construction

Machines for loading and unloading catalysts; machines for loading and unloading materials into inert reactors