The metal insert is made of lead brass and stainless steel.

上述金属嵌件由铅黄铜或不锈钢制成。

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The metal-plastic composite nut, according to Claim 1 and 4, is characterized in that the metal insert is made of lead brass and stainless steel.

根据权利要求1或4所述的金属塑料复合螺帽，其特征在于所述金属嵌件由铅黄铜或不锈钢制成。

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The paper presents some results obtained from a research about effects of rare-earth(RE)and boron(B)refining on the microstructure and dezincification corrosion properties of casting lead brass.

研究了加入稀土和硼细化处理对铸造铅黄铜组织和脱锌腐蚀性能的影响。

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Guests interested in being an honorary Duckmaster can book the Ducky Day package, which includes the privilege of helping the Duckmaster lead the daily march and an official brass-head Duckmaster cane to take home.

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