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  • The formulations and preparation of PU matting and finishing agent for leather surface have been studied.

    研究了革类表面用聚氨酯消光整饰剂的配方及制备工艺。

    youdao

  • The formulations and preparation of PU matting and finishing agent for leather surface have been studied.

    研究了革类表面用聚氨酯消光整饰剂的配方及制备工艺。

    youdao

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