柱塞泵 叶片泵 换向阀 齿轮泵 叶片泵
A11VO60DR/10R-NPD12N00北京华德HUADE轴向变量柱塞泵
4WMM6E50B北京华德HUADE手动换向阀4WMM6E50B
WMD6J50B北京华德HUADE旋转换向阀WMD6J50B