system it Itävalta

...It is also used for the control of invasive plants in the pools and controls roots that may have punctured the piping system. Fish farmers use it to kill off the invasive types of snails in aquariums. However, its use in the aquarium is highly controlled, as it is toxic to fish in high quantities.":"Kupari(II)sulfaatia käytetään uima-altaissa algaesidinä. Sitä käytetään myös invasiivisten kasvien...

... high-quality finish. Very attractive surface, the visible edges are particularly attractive. Therefore these covers are particularly suitable where a look of elegance is required. Very easy-to-open design. Robust corner joints guarantee a very high degree of rigidity and make it easier to lay tiles and ceramic finishes. EPDM seal. The cover is reinforced with a clamped steel mesh reinforcement...