Thanh toán linh ho?t: Thanh toán ti?n m?t tr?c ti?p khi nh?n tem ho?c thanh toán tr??c qua tài kho?n.Saturation Point-The point at which very good electron emission with the gun is reached devoid of shortening the filament lifetime appreciably.Decal b?c là lo?i có ch?t l??ng t?t v?i kh? n?ng ch?ng th?m n??c r?t cao. Ch?t li?u này ???c s? d?n