Oxyzen na-arụ ọrụ Ntuziaka nhọrọ: Akụrụngwa enwere ike ibugharị Q-AO Oxygen Portable Colorimeter na-arụ ọrụ T-6800 Multi-parameters Portable Colorimeter Ihe nyocha n'ịntanetị K600 Water Online Analyzer (K-Y03) Ngwa ụlọ nyocha Z-T700 nwere ọgụgụ isi Multi-parameters Analyzer Z-D700 Multi-parameter Analyzer
