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DTPMPA Diethylene Triamine Penta (Methylene Phosphonic Acid) CAS 15827-60-8,Antiscalants Corrosion Inhibitors And Chelating Agentslink:http://www.yingxinwater.com/antiscalants-corrosion-inhibitors-and-chelating-ag/dtpmpa-diethylene-triamine-penta-methylene.html