Chemical products for use in industry, science, photography, as well as in agriculture and forestry; unprocessed artificial resins; unprocessed plastic materials; recycled or non-recycled polyvinyl chloride; vinyl chemical compounds; superchlorinated polyvinyl chlorides; superchlorinated vinyl chemical compounds; sodium hydroxide; chlorinated derivatives namely chloromethanes, methyl chloride, methylene chloride and carbon tetrachloride; hydrogen; soil fertilizers; fire-extinguishing compositions; tempering and soldering preparations; chemical substances for preserving foodstuffs; tanning materials; adhesives for use in industry; preserving salt, other than for foodstuffs; salts for industrial use; chemical reagents other than for medical or veterinary use; decolorants for industrial use, chemical preparations for scientific use other than for medical or veterinary use.