Composite boards of resin; building stone; gypsum panels; asbestos cement board; mosaics for building; refractory materials; waterproof coiled material (terms considered too vague by the International Bureau (Rule 13(2)(b) of the Common Regulations); gutter pipes, not of metal; water pipes, not of metal; plastic building materials in the form of pipes, slabs, rods and strips; lighting slabs; cement; buildings, not of metal; coated glass; binding agents for making stones (terms considered too vague by the International Bureau (Rule 13(2)(b) of the Common Regulations)