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Improvements introduced in filtering fillers, particularly for filtering facilities for swimming pools. (Machine-translation by Google Translate, not legally binding)
Improvements introduced in filtering fillers, particularly for filtering facilities for swimming pools. (Machine-translation by Google Translate, not legally binding)
Improvements introduced in filtering fillers, particularly for filtration installations for swimming pools, characterized in that the filtering filler is formed by a series of fiberglass elements. (Machine-translation by Google Translate, not legally binding)
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