• 根据收缩原则,研究适用于模具块铸钢件发热覆盖保温设计工艺

    Based on the principle of volume contraction of freezing, the designing process of riser fitting to the cast steel inserted die with exothermic covering flux has been studied.

    youdao

  • 根据收缩原则,研究适用于模具块铸钢件发热覆盖保温设计工艺

    Based on the principle of volume contraction of freezing, the designing process of riser fitting to the cast steel inserted die with exothermic covering flux has been studied.

    youdao

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