The casting technique with top gating system, outer shaped iron chill, compound casting mold and core assembly molding was used for producing aluminum impeller on a large scale successfully.
详细介绍了采取顶注式浇注系统、成形外冷铁、复合铸型、组芯造型的铸造工艺，成功地生产出批量铝叶轮。
The research of the molding system for the castable polyurethane tire is introduced, mainly including the design and development of the core mold, outer mold and rotatable frame.
介绍聚氨酯浇注轮胎成型系统的研究，主要包括芯模、外模及翻转架的设计和研制。
The fan frame is provided with an outer frame, the inner side of the outer frame forms a hollow motor shell in an integrative molding way.
该扇框具有一个外框部，该外框部内侧以一体成型方式 形成中空的一个马达壳；
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