非接触式光电转速计 DT-2234B
深圳市源恒通科技有限公司
p1Src=//y2.yzimgs.com/uploads/340569/2017315-82122762.jpg&p2Src=//y2.yzimgs.com/uploads/340569/2017315-82128655.jpg&p3Src=//y3.yzimgs.com/uploads/340569/2017315-8213538.jpg