*基础铜材料系列 Base copper material series *黄铜带、黄铜板  Brass strip and sheet *紫铜带、紫铜板 Purple copper strip and sheet *高低压电气汽车元配件系列 High-low voltage electrical accessories series *冲压件产品系列 Stamped pieces series *各类板金件  Diverse sheet metal pieces *高低压电器触头系列