Nitrogen na Nitrogen Jagoran Zaɓi: Kayan Aiki Mai Ruwa Q-3N Nitrogen Nitrogen & Nitrate Nitrogen & Nitrite Nitrogen Portable Colorimeter T-CP40 Launin Launi Mai Ruwa don Ruwa T-6800 Multi-sigogi Mai ɗaukar launi mai launi T-AM Aquaculture Portable Colorimeter Mai Binciken Intanet Mai Binciken Ruwa na kan layi na K600 （K-Y02 Kayan Lab Z-T700 Mai Fassara Multi-sigogi Mai Fassara Z-D700 Multi-parameters Analyzer Z-T500 Mai Fassara Multi-sigogi Mai Fassara Z-D500 Multi-parameters Analyzer TA-60 Mai Fassara Ruwa Mai Aiki Mai Ruwa TA-98 UV Spectrophotometer bayyane
