In nhãn s?n ph?m có r?t nhi?u ph??ng pháp ???c s? d?ng th?c t? trong ?ó in offset và in k? thu?t s? là ?ng d?ng ph? bi?n h?n. Secondary fixation: To raise the distinction of your minute structures Within the specimen and provides additional stability, a secondary fixation is carried out making use of osmium tetroxide (OsO4).Do v?y n?u có nh