Unprocessed artificial resins, unprocessed plastics; manures; fire extinguishing compositions; tempering preparations and soldering fluxes; chemical substances for preserving foodstuffs; tanning agents for use in the manufacture of leather, namely, oils for currying leather; adhesives used in industry; chemical fluids for use as leak detectors of gas and air in pipework in the plumbing industry; Smoke generating chemical compositions for testing air flow in flues and ventilation systems in th...