Aluminum plastic PP-R pipes combines both the strengths of metal pipes and plastic pipes, so it enjoys a wide application. Besides, middle layer of the pipe is of aluminum, which is highly resistant to outer air and inhibits bacterial survival and regrowth. Thus, with the pipes, the hygiene and safety could be well guaranteed. Moreover, since this pipe is highly resistant to high temperature and high pressure, it could be used to transfer hot water, whose temperature could be as high as 95℃.