Fujian bona Tool Co., Ltd. manufacturer equipped with test rooms with strong technical force. Our products are widely recognized, customers trust, we welcome new և old customers from all walks of life to contact us for further business և mutual success. our products. Chemical Oxygen Demand Meter, Digestion Apparatus, Biological Oxygen Demand Meter, Bod 0 - 50, Portable Bod Cod Meter, Heationg Monitor, Bod Analyser, Bod Analyzer 12 Tests, Bod Cod Water Analysis, Water Quality Analyzer Toc Cod