Metal windows; doors of metal; window frames of metal; door frames of metal; fittings of metal for windows; fittings of metal for doors; parts and accessories for the aforesaid goods.

Non-metal building products; non-metal windows; non-metal doors; non-metal window frames; non-metal door frames; glass for non-metal windows; glass for non-metal doors; glass for windows; glass for doors; fittings for non-metal windows; fittings for non-metal doors; parts and accessories for the aforesaid goods.

Heating apparatus; heating apparatus for heating liquids and gases, especially flammable and/or explosive liquids and gases; heating boilers; heating installations, vented and unvented water storage heaters; vat heaters; electrically powered water flow heaters, in line process heaters, oversink and cistern water heaters, water boilers, fan assisted heaters, convector heaters; space heaters; flameproof air heaters using liquid heated heat exchangers, including fan assisted flameproof air heaters; electrically heated radiators; liquid filled radiators; immersion heaters; heaters; heaters for mounting in ducting to heat air passing through the ducting; particularly any of the aforesaid when adapted to be used in hazardous environments and/or for use in oil and gas industry installations but none of the aforesaid including heat exchangers