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EP0182809A4 PHENOLIC RESIN-POLYSOCYANATE BINDER SYSTEMS CONTAINING A PHOSPHOROUS BASED ACID. 失效
苯酚树脂多异氰酸酯结合体系,含有磷酸基酸。

PHENOLIC RESIN-POLYSOCYANATE BINDER SYSTEMS CONTAINING A PHOSPHOROUS BASED ACID.
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