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FLAME-PROOF AGENT BASED ON FLOWABLE POWDERY AMMONIUM POLYPHOSPHATE, ITS PRODUCTION AND FIRE RETARDANT POLYURETHANE AND POLYURETHANE FOAM CONTAINING THE SAME
FLAME-PROOF AGENT BASED ON FLOWABLE POWDERY AMMONIUM POLYPHOSPHATE, ITS PRODUCTION AND FIRE RETARDANT POLYURETHANE AND POLYURETHANE FOAM CONTAINING THE SAME