双段旋转式速真空泵/速真空泵图片

p1Src=//y1.yzimgs.com/uploads_old/345003/2011111511090025_old.jpg&p2Src=//y1.yzimgs.com/uploads_old/345003/2011111511090025_old_1.jpg&p3Src=//y1.yzimgs.com/uploads_old/345003/2011111511090025_old_2.jpg"

j9老哥俱乐部