beijing lianhua yongxing technology development co., ltd. is a manufacturer of water quality testing instruments in my country. after nearly 30 years of continuous efforts, lianhua technology has become an enterprise in the development direction of water quality detectors in china and a manufacturer of water quality detectors in my country. with strong scientific research strength and years of experience in the field of water quality testing, lianhua independently designed and developed multiple product series. including: multi-parameter water quality detection series, ammonia nitrogen measuring instrument series, total phosphorus measuring instrument series, water quality online detector series,
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