Giúp s?n ph?m n?i b?t: V?i các ???ng nét in ?n s?c s?o, màu s?c t??i sáng b?t m?t s? giúp s?n ph?m n?i b?n b?t so v?i ??i th?. T? ?ó giúp b?n d? dàng chi?m tr?n ?u th? c?nh tranh. Magnetic lenses are accustomed to target the beam of electrons on the specimen. Because of the support provided by the column tube of the condenser lens into you