Oddly enough, but our country is hopelessly behind most other states in terms of using PPU. PPU isolation penetrated Russian reality, our construction recently, while abroad for more than seventy years, polyurethane foam remains the most used thermal insulator for pipes. Actually, the year after the year of the PPU does not give the palm of the championship in this regard, and today it still does not have to talk about the presence of any really worthy competition in the PPU shell.
Used thermal
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