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Exploration of catalyst application in polyurethane hard foam for refrigerator

Exploration of catalyst application in polyurethane hard foam for refrigerator Preface In the process of polyurethane rigid foam for refrigerators, the one-step method is generally used. For refrigerator and other freezing equipment, foam in the complex structure of the large cavity distribution and uniformity, the degree of fine uniformity of foam pores, foam closed rate...