Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry; unprocessed artificial resins, unprocessed plastics; manures; fire extinguishing compositions; tempering and soldering preparations; chemical substances for preserving foodstuffs; tanning substances; adhesives used in industry; metal powders, ceramic powders, metal-ceramic composite powders, and wear-resistant coatings for use in the manufacture of turbine blades, rolling mills, dies, mining apparatus, gas and oil drilling and exploration apparatus, tools, cutting instruments, and metal forming and working apparatus; hard materials such as oxides, nitrides and carbides for use in the manufacture of metal working and grinding implements, cutting instruments, mining apparatus, gas and oil drilling and exploration apparatus, and tools; and metallic carbides in powder form for use in the manufacture of tools and cutting instruments