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Polyurethane (PU) purification board
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PU (Polyurethane) English name: Polyurethane, abbreviated as PU. Its Chinese name is polyurethane, commonly known as Youli glue or spring glue, and its full name is polyurethane or isocyanate polymer. Polyurethane is an elastic material that lies between plastic and rubber, and its excellent and unique comprehensive properties are not possessed by ordinary plastics and rubber.
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