Carbon; agglutinants for concrete; chemical preparations in the nature of filtering materials for use in industrial water filtration; mineral substances in the nature of filtering materials for use in industrial water filtration; unprocessed plastics in the nature of filtering materials for use in industrial water filtration; vegetable substances in the nature of filtering materials for use in industrial water filtration; chemicals for use in purification of water; activated carbons for use i...

Environmental equipment, devices, and materials, namely, water and air filtration and purification units; water filters; air filters for domestic use; filters for air and gas conditioning