Portable electric heaters for industrial use; room heaters for industrial use, namely, electric radiant heaters, ceramic heaters and fan heaters; industrial dehumidifiers; parts and fittings for industrial heating apparatuses, industrial drying apparatuses, and industrial dehumidifiers, but none of the foregoing for use in connection with the construction, maintenance and repair of bituminous and asphalt wearing courses, thoroughfares, roads, footways, highways, aircraft runways, playgrounds, pavements, car parks, railway station platforms and driveways
Environmental Control Apparatus