Installation and repair of unworked or semi-worked glass, powdered glass and glass microspheres not for building purposes

Unworked or semi-worked glass, except glass used in building; unworked or semi-worked powdered glass and glass microspheres, not for building purposes

CHEMICAL PRODUCTS USED IN INDUSTRY; NAMELY, CHEMICALS FOR USE IN THE MANUFACTURE OF FIRE EXTINGUISHING COMPOSITIONS; FIRE EXTINGUISHING COMPOSITIONS; CHEMICALS FOR USE IN THE MANUFACTURE OF SYNTHETIC RESINS TO IMPROVE THE PROPERTIES OF SAID RESINS