Chemical products for brightening dyestuffs, for use in science, agriculture, horticulture and forestry industries; Chemical products for preventing scale in science, agriculture, horticulture and forestry industries; soil fertilizers; nitrogenous fertilizers; chemical products for preserving foodstuffs; tanning materials for use in the manufacture of leather; fertilizers; complex fertilizers; chemicals used in wine making, namely, tannin; tanning agents for use in the manufacture of leather;...