Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry; unprocessed artificial resins, unprocessed plastics; fertilizing preparations; chemical substances for preserving foodstuffs; adhesives used in industry; water-purifying chemicals; bacteria for waste water treatment

Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes; air conditioning apparatus; air purifiers; water filtration and purification apparatus

Water treatment and purification; waste treatment; waste destruction; biological water purification