美国CLEAN CON5000 电导率控制器... 上海金沙js3833科学仪器有限公司

p1Src=//y1.yzimgs.com/uploads/512564/2018919-111740433.jpg?watermark/2/text/5LiK5rW3546W5p6Q56eR5a2m5Luq5ZmoNuaciemZkOWFrOWPuA==/font/5a6L5L2T/fontsize/500/fill/I0E3QTlBOA==/gravity/Center"

aa