1 chemical products used in industry; chemical additives and auxiliary means, ceramics and carbides, synthetic resins and plastics in crude state for soldering, brazing and welding processes and for the coating of surfaces; fluxes, welding components for metals; welding fluxes or powders; chemical mixtures and reaction products, mainly on an inorganic base in form of fluxing agents; coating materials for protective layers on machines and their parts, mainly for thermal spraying, soldering, brazing and welding; resins and plastics in the form of liquids, powders and pastes, preparations for soldering, brazing or welding metals; sealing compositions; rubber solutions and adhesives used in industry