Hengming COD used electrical test equipment  Hengming used electrical test equipment are well-known in China for excellence in water and liquid analysis in R&D, government compliance, pharmaceutical, drinking water, wastewater treatment, environmental, power generation and general industrial processing markets.    Product Range:  Name COD(Chemical Oxygen Demand)  used electrical test equipment Total Cr(Total Chlorine)  used electrical test equipment Total Zn(Zinc)  used electrical test equipment Cr6+(Chromium VI)  used electrical test equipment Cu(Copper)  used electrical test equipment Mn(Manganese)  used electrical test equipment NH3-N(Ammonium)  used electrical test equipment Ni(Nickel)  used electrical test equipment Total Cd(Cadmium)  used electrical test equipment Total P(Total Phosphorus)  used electrical test equipment    Contact Us:  View more: Read More →