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产品名称: 189459产品型号: 189459产品时间: 2017-03-15Hach® QT Filters are recommended for use in various Hach Water Analysis Handbook Methods and other environmental reference methods. Optimized ashless hardened circles provide an abrasion resistant smo
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Diameter:7.3 in ( 185 mm )
Material:Cellulose
Quantity:100/pk
Unit:100
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