lead copper matte

例句：

1. 1.The lead-copper matte is used in the production of electrical contacts.
   铅铜板用于生产电气接触件。
2. 2. The lead-copper matte is a popular material for making jewelry.
   铅铜板是制作珠宝的流行材料。
3. 3. The lead-copper matte has good electrical conductivity and heat dissipation properties.
   铅铜板具有良好的导电性和散热性能。