| http://www.w3.org/ns/prov#value | - Problems that can be solved using the professional treatment water stains, oxidations, acid attacks of the birds residues (if they are treated in due time), acid rains spots, gloss lack and tarnished areas, various kinds of contamination (splashing with other paint, with cement, lime, trees tannin strains, trees resin and dry insects, etc.), scratches which are not larger than the thickness of the
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