Why can't I find the online manual of Anji water purifier?

The online instruction manual of Anji water purifier has passed the viewing date. According to relevant public information, the online manual of Anji water purifier will only reserve one month for customers to make room for the server, and it will not be found after the expiration. Instruction is a relatively detailed description of something or something in an applied style, which is convenient for people to know and understand something or something.