The method of identifying the authenticity of Lillo water pipes imported from Germany is as follows:

1. Smell the water pipes to see if there is any peculiar smell. A good pipe has no peculiar smell. If it is not good, the peculiar smell will be very strong and very pungent.

2. Check the color, thickness, glossiness of the water pipe, and whether the hose manufacturer's trademark, specifications, temperature, pressure, and production batch are marked on the outer wall of the pipe. If any of these are missing, it is irregular.

3. When purchasing PPR pipes, check whether there is an agency or manufacturer with a formal authorized pipe distribution certificate.

4. Water pipes are water supply pipes. Modern decoration water pipes are built in the wall. There are three types of water pipes. The first category is metal pipes, such as hot-dip cast iron pipes with plastic lining, copper pipes, etc. Pipes, stainless steel pipes, etc. The second category is plastic-clad metal pipes, such as steel-plastic composite pipes, aluminum-plastic composite pipes, etc. The third category is plastic pipes, such as PB pipes, PP-R pipes, etc.