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polymethylene polyphenylene isocyanate
plast.
聚亚甲基聚苯基异氰酸酯〈参见 PMPPI〉
;
聚亚甲基聚苯基异氰酸酯〈参见 PAPI〉
;
聚亚甲基聚苯基异氰酸酯
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