美国CLEAN PH5500 pH/mV/ORP 壁挂... 上海金沙js3833科学仪器有限公司

p1Src=//y2.yzimgs.com/uploads/512564/2018919-10228702.jpg?watermark/2/text/5LiK5rW3546W5p6Q56eR5a2m5Luq5ZmoNuaciemZkOWFrOWPuA==/font/5a6L5L2T/fontsize/300/fill/I0E3QTlBOA==/gravity/Center"

aa