The metal insert is made of leadbrass and stainless steel.
上述金属嵌件由铅黄铜或不锈钢制成。
2
The metal-plastic composite nut, according to Claim 1 and 4, is characterized in that the metal insert is made of leadbrass 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。
3
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 leadbrass.