C3560 C3561 C3600 C3601铅黄铜
HNi65-5 HNi56..
HAL60-1-1 HAL5..
铝黄铜 HAL77-2 HA..
C3771 C3713 C3..
C3603 C3602 C3..
C3560 C3561 C3..