machines and machine tools; namely, machines and machine tools for use in the treatment of metal, waste material or metal containing waste material; namely, machines incorporating magnets for separating metallics from metal containing wastes; screening machines; density separators, dross liquid processors; cyclone separators; dust and fume extractors and collectors; and crushers; motors (except for land vehicles); machine coupling and belting (except for land vehicles); incubators for eggs, a...