Akụrụngwa na-eme ka mmiri dị nro bụ ngwaọrụ na-ewepụ ihe ndị siri ike dị ka Calcium na Magnesium ion na mmiri iji mee ka mmiri dị nro, ka e wee nwee ike iji ya mee ihe nke ọma na ọgwụ, chemicals, ọkụ eletrik, textiles, petrochemicals, paperworks na ubi ndị ọzọ.Na mpaghara a, Toption Machin...
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