Ceramic drain pipes; Ceramic floor tiles; Ceramic roofing tiles; Ceramic shapes for use in refractory furnaces; Ceramic tiles; Ceramic tiles for flooring and facing; Chipboard; Glass granules for marking roads; Glass panels for building construction purposes; Modular non-metal pigsties; Modular non-metal poultry houses; Non-metal ducts; Non-metal self-aligning demountable snap fasteners consisting of press fasteners and press studs for use in attaching panels, hatches, floors and furniture in...