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urethano

1、氨酯基

氨酯基 urethano聚氨酯 polyurethane; flexurane; flexane◇聚氨酯树脂胶 polyurethane resin adhesive; 聚氨酯推进剂 polyurethane propella...

urethano prepolymer containing acrylic ester含双键的氨酯预聚体

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