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  • 着重讨论塑料管材用橡胶圈(RR)伸缩节机械胀管模具。

    The mechanical expansion pipe mould used for plastic RR reciprocal joint was discussed in detail.

    youdao

  • 着重讨论塑料管材用橡胶圈(RR)伸缩节机械胀管模具。

    The mechanical expansion pipe mould used for plastic RR reciprocal joint was discussed in detail.

    youdao

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