油研液压电液换向阀 DSHG-06-3C60-D24-N1-52,DSHG-06-3C60-A240-N1-52, DSHG-06-3C4-T-A240-N1-52,DSHG-06-3C60-T-D24-N1-52, DSHG-06-3C60-ET-D24-N1-52,DSHG-06-3C60-ET-A240-N1-52,