• 采用混杂纤维增强材料并以改性酚醛树脂基体制成提速列车用制动闸片

    A new type of brake pad using hybrid fibers reinforced modified phenol-formaldehyde resin matrix was produced.

    youdao

  • 采用混杂纤维增强材料并以改性酚醛树脂基体制成提速列车用制动闸片

    A new type of brake pad using hybrid fibers reinforced modified phenol-formaldehyde resin matrix was produced.

    youdao

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