Min. Order Reference FOB Price
1000 Pieces US$2.00 / Piece
Product Description
Water test strips pH Total alkalinity Residual chlorine Total chlorine Nitrate Hg Lead Iron Copper Fluoride Cyanuric acid Bromine Cr Hardness Sulfate Carbonate root Hydrogen carbonate root Quaternary ammonium salt Potassium permanganate Sulfite VC Calcium hydrogen peroxide ...