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化学耗氧量cod测定仪

星空传媒天美传媒有限公司-星空mv梦幻mv天美mv-星空mv天美mv梦幻mv-星空天美梦幻mv视频-麻花星空mv天美大象 > 产品世界 > COD快速测定仪 > 化学耗氧量cod测定仪 >

化学耗氧量cod测定仪
化学耗氧量cod是水中一种有机物，是检测污水中有机物含量多少的一种物质。...

化学需氧量测定仪
简单经济型COD设备，浓度直读无需计算，节省实验操作时间，测值准确...

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