趣英语 / 查找:retardant” [共找到1条结果]
  • retardant造句

    Novelty intumescent flame retardant ( IFR ) was made from phosphoric acid, pentaerythritol and melamine.使用磷酸 、 季戊四醇、三聚氰胺合成了一种膨胀型阻燃剂.Glass reinforced high performance polyamide resin, with a non - halogenated flame retard...