Toc vials ndeye pre-cleaned midziyo yakagadzirwa kubva kune yakakwirira-mhando baloriside girazi kana zvimwe zvigadzirwa. Ivo vanonyatsoita kuti vanyorwe kuderedza njodzi dzakasvibiswa dzakabatana nevarwi vechinyakare, kuona kuti kunyange trace machena machena haasi skew iyo yekuverenga.
