Indoor plastic water supply pipe, 20 of the 20 refers to the inside diameter or outside diameter?
For the performance indexes of the pipes are quite strict, especially in drinking water, with no need for pipeline without radiation, does not contain harmful substances such as heavy metals, better corrosion resistance, longer service life etc..
The composite pipe is typical of aluminum plastic tube, but it has been phased out because of its thermal expansion and cold contractionPlastic pipe is the most commonly used PPR water pipe, safe, non-toxic, convenient installation, low prices and many other reasons, making it the most commonly used water pipes in home improvement. But because of environmental hormones, more and more people began to use metal tubes or PPR lined metal pipes as water supply pipelines.
20 of the indoor plastic water supply pipes, 20 of the diameter, refers to the outer diameter.The water supply pipe is divided into metal pipes, composite pipes and plastic pipes. The metal tube is mainly divided into the copper tube and the stainless steel water pipe. The metal pipe has many characteristics, such as safety, sanitation, durability and so on. It is the most ideal water pipe for the home outfit.
