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jis。符合水测试方法标准色层A(1张) 免费残留氯测量试剂:DPD-F-1(50份)测量范围(mg/l):0.05/0.1/0.1/0.2/0.4/0.4/0.4/0.5/0.5/0.7/0.7/0.7/0.7/1.5/1.5/1.5/1.5/1.5/2.0 MMM MM> 120 <(MM) (mm):108
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600G