pH测量变送器Dulcotest 4-20mA pHV1 809126 宾奇（上海）环保科技有限公司

p1Src=//y1.yzimgs.com/uploads/417376/202177-10413791.jpg&p2Src=//y2.yzimgs.com/uploads/417376/202177-1040719.jpg&p3Src=//y1.yzimgs.com/uploads/417376/202177-1047423.jpg