bronze-graphite

例句：

1. 1. The bronze-graphite is used in the production of bronze castings.
   青铜石墨用于青铜铸件的生产。
2. 2. The bronze-graphite is a valuable resource for metallurgical industry.
   青铜石墨是冶金工业的重要资源。
3. 3. The bronze-graphite is also used as an additive in the production of plastics.
   青铜石墨也被用作塑料的添加剂。