?ây là m?t trong nh?ng ph??ng pháp in ?n hi?n ??i nh?t Hello?n nay. Công ngh? Offset tuy?t v?i ??n m?c cho ra thành ph?m ??p nh?t v?i chi phí r? nh?t.Secondary fixation: To increase the contrast of your minute constructions Within the specimen and provides far more stability, a secondary fixation is completed using osmium tetroxide (OsO4).In