Why can't I find the patent number on the Internet?

First of all, this patent number is correct in terms of paragraph number; Secondly, this patent belongs to the utility model patent in 2007, and the announcement period of utility model patent is about 1 year. Maybe this patent hasn't been published yet. Third, utility model patents are not made public in advance, and only invention patents will apply for pre-disclosure, with the purpose of substantive examination; Fourth, patents do not represent the quality of products, but only the ability of a company to independently develop products. The details need to be determined.