19 Non-metal portable buildings; non-metal building modules, shells, partitions and frames for the construction of pre-fabricated non-metal buildings; non-metal doors, windows, walls, wall panels, ceilings, ceiling panels, load bearing ceiling, floors, floor panels, coving, trims, columns, beams, bumper rails, access panels, service panels, transfer hatches for the passing of materials from one controlled environment to another; non-metal seals, pipes, drains, plumbing pipes, pipework, ducts, air ducts, air vent covers; non-metal controlled environment buildings and rooms, non-metal air walls, shelving, hoods, air-locks, air vents; non metal parts, fixtures and fittings for any or all of the aforesaid goods