The second is pushing forward the progress of technology, especially adopting the new molding material and molding methods.
第二是推进技术进步尤其是造型材料及造型方法的采用；第三是提高铁水温度，开发新的铸件品种。
The second is pushing forward the progress of technology, especially adopting the new molding material and molding methods.
第二是推进技术进步尤其是造型材料及造型方法的采用；第三是提高铁水温度，开发新的铸件品种。
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