water test strips for drinking water 17 In1 100 strips E.coli
USD $9 - $9.5 /Barrel
Min.Order:10 Barrels
Changchun Wancheng Bio-electron co.,ltd.
Imported raw material suppliers
Filter paper: MN, Germany, Utman, UK
Film: DuPont, USA
Reagent: Sigma, Germany
Test Items:Hardness、Total alkalinity、Carbonate Root、Total chlorine、Free Chlorine、Bromine、Nitrate、Nitrite、Fluoride、Chromium、Copper、Lead、Mercury、Iron、Cyanuric Acid、Ph、li