Non-metallic structural reinforcing materials for building purposes; non-metallic reinforcing materials, namely, non-metallic reinforcing bars for building construction; non-metallic framework for partitions for building; non-metallic framework for buildings; partitions not of metal for building; rails not of metal; wall linings not of metal for building; non-metallic suspended ceiling structures comprising panels and frames; railway sleepers, not of metal; branching pipes, not of metal; non-...