“Umutuku No 3” ni iki?
Umutuku No 3, uzwi kandi ku izina rya erythrosine, ni pigment ya chimique ikozwe mu buryo bwa chimique ikorwa binyuze mu gutunganya peteroli, kandi ikunze gukoreshwa nka pigment ya sintetike muri bombo, ibicuruzwa bitetse, bikonje de ...
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