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    TONGAO TRD-30S multi-functional intelligent dual temperature zone digestion instrument, dual temperature zone independent control 30 holes
    TONGAO TRD-30S multi-functional intelligent dual temperature zone digestion instrument, dual temperature zone independent control 30 holes
    $1964.00
    TONGAO TDR-16A digestion instrument COD total phosphorus and total nitrogen digestion 16 holes 12 minutes heating up
    TONGAO TDR-16A digestion instrument COD total phosphorus and total nitrogen digestion 16 holes 12 minutes heating up
    $919.00
    TONGAO TDR-25 digestion instrument 25 holes COD total phosphorus and total nitrogen digestion, temperature control accuracy +/- 1 ℃
    TONGAO TDR-25 digestion instrument 25 holes COD total phosphorus and total nitrogen digestion, temperature control accuracy +/- 1 ℃
    $1003.00
    TONGAO TR-6B digestion instrument COD total phosphorus and total nitrogen digestion for 12 minutes, heating up to 165 ℃
    TONGAO TR-6B digestion instrument COD total phosphorus and total nitrogen digestion for 12 minutes, heating up to 165 ℃
    $762.00