Humic acid mhando yekurasikirwa kwekuwedzera imhando yemafuta epolymer tsime simende yekurasikirwa kwemvura yekuwedzera iyo yave kuwedzera mukurumbira mumakore achangopfuura.Sechimwe chezvigadzirwa zvitsva zveOilbayer, kambani inoshanda muR&D nekugadzira makemikari emumunda wemafuta, iyi yekurasikirwa kwemvura inowedzera...
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