Nkibicuruzwa byinshi bigamije imiti, calcium ya calcium ikoreshwa cyane mubiribwa, ibiryo, ubwubatsi, impu na peteroli. Guhagarara kwayo, gukomera hamwe na calcium ikungahaye bituma ikoreshwa cyane murimurima. Nyamara, ubwiza bwa calcium ikora kumasoko ntiburinganiye, nuburyo bwo guhitamo ...
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