Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry; unprocessed artificial resins as raw materials in the form of powders, liquids or pastes; unprocessed plastics; manures; fire extinguishing compositions; chemical substances for preserving foodstuffs; chemicals for treatment of gas and oil installations, namely, chemicals used for removing deposits from gas and oil installations, chemicals used for removing gases from gas and oil install...