The application of color aluminum alloy pipe aluminum downpipe can be better integrated with the steel structure. Moreover, there are many different types of elbow and downpipe, which can meet different construction requirements.

Compared with ordinary plastic pipes, there will be no aging due to thermal expansion and cold shrinkage, cracks and frost cracks. Even in the cold northeast and northwest regions, there is no frost damage, and the service time is relatively long.

The aluminum alloy pipe downpipe is used with the steel structure building. It is simple and generous, and the pressing color is optional. It can be used with the steel structure outer wall panel in color matching, with good visual effect. There are a variety of elbows for use, which are suitable for the steel structure building. Even the more complex wall system can still be installed.

When high density polyethylene (HDPE) pipes are used, the relatively large spacing of inspection openings of aluminum alloy pipes should not be greater than a certain size, and the rainwater pipes should be installed at the positions specified in the design; 45 ° tee should be used for connection between connecting pipe and suspension pipe; Two 450 elbows or 900 elbows with r not less than 4D shall be used for the connection between the suspension pipe and the riser, and between the riser and the discharge pipe.