Certificate of Declaration of Conformity or Certification of submission of Declaration of Conformity with food items security rules granted to some useful meals before the efficient day of this Circular shall however keep on being legitimate till its expiry date.T?m nhìn s? m?nh H? th?ng c? s? y t? Tìm bác s? Làm vi?c t?i Vinmec D?ch v?Ceftria