Raw material ọgwụ na-ezo aka na akụrụngwa ọgwụ eji na mmepụta nke dị iche iche nkwadebe, nke bụ ihe na-arụsi ọrụ ike mgwa na nkwadebe, dị iche iche powders, kristal, extracts, wdg eji maka ọgwụ nzube a kwadebere site chemical njikọ, osisi mmịpụta ma ọ bụ biotechnology, ma. Nke sub...
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