1, aluminum-plastic pipe is a popular pipe in the market. Because of its light weight, durability and convenient construction, its flexibility is more suitable for home decoration. The inner and outer layers of aluminum-plastic pipes are made of special polyethylene materials, which are clean, non-toxic and smooth. It can be used for more than fifty years.

2, pvc pipe buried depth should not be less than 0.7 meters. If it is lower than this standard, when large and heavy vehicles pass by, it is easy to crush and cause water leakage.