Polyurethane hot-melt adhesive was prepared which polyester low molecular weight diol chain-extender, isocyanate and other.

  • 以自制的二元醇、低相对分子质量的扩链剂和二异氰酸酯及其他助剂合成聚氨醇热熔胶粘剂.

  • 互联网摘选 2025-01-18 13:03:27

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