OxyChalk

Class [1]
Chemical Products

Substances for use in aquaculture [other than pharmaceutical]. Chemical substances for the enhancement of the environment. Chemical substances for the protection of the environment. Chemicals for the control of environmental pollution. Chemicals for use in fish farming [other than pharmaceuticals]. Chemicals for use in fish tanks [other than pharmaceuticals]. Natural preparations for the purification of water in pisciculture. Chemical preparations for use in water purification. Chemical products for the purification of water. Chemicals for the purification of water. Chemicals for use in the purification of water. Inorganic precipitation agents for the purification of potable water. Inorganic precipitation agents for the purification of waste water.