low-grade antimony metal

例句：

1. 1. This low-grade antimony metal is used in the production of electronic components.
   这种低等级锑金属用于生产电子元件。
2. 2. The new alloy has a lower melting point than the traditional low-grade antimony metal.
   这种新型合金的熔点比传统的低等级锑金属要低。
3. 3. In recent years, there has been an increasing demand for low-grade antimony metal due to its high electrical conductivity.
   由于其高导电性，近年来对低等级锑金属的需求不断增加。