Construction components not of metal in the nature of ceiling, wall, and floorboards and plasterboards for the production or lining of ceilings, walls and floors, with and without sound-proofing and sound absorbent properties, with and without heat-insulating properties and fire-proofing and fire-safety properties, and with and without intumescent or endothermic reacting properties; construction materials, namely, non-metal moldings also in combination with metal casings,; pre-formed prefab c...