Non-metallic building materials; non-metallic rigid pipes for building; asphalt, pitch and bitumen; non-metallic transportable buildings; non-metallic monuments; non-metallic framed conservatories, doors and windows; non-metallic supports; tree gratings (non-metallic-) for draining thoroughfares; non-metallic supports for use in horticulture and landscaping; non-metallic building materials all for use in horticulture and landscaping; non-metallic load bearing supports and structures for use i...