A cikin mulkin kayan girke-girke na kwaskwarima, neman sakamakon neman na halitta ya haifar da hauhawar mafita kamar PLLA, musamman ga bovtock dauke hanyoyin. PLLA, ko Poly-l-lactic acid, ba kawai filler bane; Yana da mai karfafawa mai karfafawa wanda yake ba da amfanin da aka saba da gaggawa
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