We unitechem co., ltd is specialized in research , development and production of EDTA series products, the main products are EDTA, EDTA-2Na, EDTA-4Na, EDTA-FeNa, EDTA-CuNa2, EDTA-ZnNa2, EDTA-CaNa2, EDTA-MgNa2, EDTA-MnNa2. The capacity our plant 8000 tons every year as one leading ...