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Rosa hylser


rolfmm

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Tror ikke det skulle utgjøre så mye, med mindre de har ligget leeenge er det kun i overflaten at sinken er etset bort. Jeg rengjør noen tynnveggede messinghylser i 15% fosforsyre, og selv med regelmessig koking i basisk løsning og påfølgende syrevask i 10-30minutter holder messingen svært lenge.

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