... ethyleneimine isocyanate 乙撑亚胺异氰酸盐 Isocyanate Resins 异氰酸酯树脂 isocyanate foams 异氰酸酯泡沫体 ...
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Isocyanate Resin Urethane Resins 异氰酸酯树脂聚氨酯树脂
Isocyanate e Resin Urethane Resins 异氰酸酯树脂聚氨酯树脂
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