(1) - Water solu ble polymers used in water clarification.
(2) - Apparatus and systems for the treatment and purification of water and for pollution abatement and environmental control.
(3) - Chemical compositions used for preserving the colour and flavour of meats and fruits.
(4) - Chemical preparations used for the treatment and purification of water and for pollution abatement and environmental control.
(5) - Activated carbon.
(6) - Services incidental to or inherent in research, development, maintenance and management of water treatment and purification systems, and pollution control systems and equipment.
(7) - Chemical preparations used for the treatment and purification of water and for pollution abatement and environmental control.
(8) - Activated carbon
(9) - Chemical preparations used for the treatment and purification of water and for pollution abatement and environmental control; chemical compositions used for preserving the colour and flavour of meats and fruits
(10) - Water soluble polymers used in water clarification.
(11) - Services incidental to or inherent in research, development, maintenance and management of water treatment and purification systems, and pollution control systems and equipment.
(12) - Apparatus and systems for the treatment and purification of water and for pollution abatement and environmental control.
(13) - Water solu ble polymers used in water clarification.
(14) - Activated carbon.
(15) - Chemical compositions used for preserving the colour and flavour of meats and fruits.
(16) - Apparatus and systems for the treatment and purification of water and for pollution abatement and environmental control.
(17) - Services incidental to or inherent in maintenance of water treatment and purification systems, and pollution control systems and equipment
(18) - Services incidental to or inherent in management of water treatment and purification systems, and pollution control systems and equipment
(19) - Services incidental to or inherent in research, development of water treatment and purification systems, and pollution control systems and equipment
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