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  • Polyurethane (PU) pouring sealant was synthesized with polymer H and modified isocyanate K as basic materials.

    选用聚合物H和改性异氰酸酯K为主要原料合成聚氨酯灌封胶。

    youdao

  • Polyurethane (PU) pouring sealant was synthesized with polymer H and modified isocyanate K as basic materials.

    选用聚合物H和改性异氰酸酯K为主要原料合成聚氨酯灌封胶。

    youdao

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