... permanently fastened紧固后不可拆卸的 permanent mould金属型 permanent-mould casting金属型铸造 ...
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permanent mould casting 金属型铸造 ; 金属模铸件
permanent mould casting machine 金属型铸造机
cast in permanent mould 金属型铸造
revesing permanent mould 双面金属型
semi-permanent mould 半永久型 ; 半永久性模
permanent mould castings 金属型铸件
The resin-coated sand lined permanent mould casting process was adopted to increase density and dimensions accuracy of castings.
为提高铸件致密度和尺寸精度，采用覆砂铁型铸造工艺。
Through the adjustment of coating formula and thickness, the service life and the casting quality of permanent mould could be enhanced.
通过调整涂料的配方与厚度，提高金属型的使用寿命和铸件的品质。
The permanent mould centrifugal casting process used for production of valve seat for internal combustion engine and the material of casting was described.
叙述金属型离心铸造内燃机气门座的工艺方法和材料特点。
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