The drug approval number is the registration number of the company approved by the state to produce this variety, but the product of the same specification produced by this company is unique. The validity period is the validity period of varieties and specifications, which should be consistent. It should be true. The approval number of drugs is the same, and the validity period is the same, for example, 2 years, or the validity period is 20 1 104, that is, the validity period is until April 30, 20 1 1 year. It should be approved for production in May 2009, with different batch numbers. Of course not.