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We had a Belm door installed 5 years ago, in Piana model wood. Despite regular maintenance with Sikens stain. The wood on the bottom of the door falls apart. We contacted Belm but their service does not follow up with a stain problem What can we do?

The door you are talking about is not a BELM brand model (as your question might suggest, and as a first answer seems to confirm), but an ASTOR import product. You can contact the importer via his website

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