Polyether-type isocyanate prepolymers are prepared with polyether polyols and tolylene diisocyanate.

  • 采用聚醚多元醇和甲苯二异氰酸酯合成了聚醚型异氰酸酯预聚体.

  • 互联网摘选 2025-01-18 15:34:13

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