Aluminum Downpipe
We offer two sizes:
The 50 mm downpipe, model DBB-057
The 70 mm downpipe, model DBB-058
The size is selected based on roof area and gutter size.
We have served over 30,000 users and work with more than 200 dealers. Our products are covered by PICC insurance. In 2024, we received the CCTV broadcast brand award.

Two Diameters for Rainwater Drainage
The Aluminum Downpipe is a vertical pipe used for roof drainage. It connects to the gutter and directs rainwater down to the ground.
We offer two sizes:
- The 50 mm downpipe, model DBB-057
- The 70 mm downpipe, model DBB-058
The size is selected based on roof area and gutter size.
We have served over 30,000 users and work with more than 200 dealers. Our products are covered by PICC insurance. In 2024, we received the CCTV broadcast brand award.
Export Packaging and Delivery
Our export packaging is suitable for both sea and land transportation. If you have special packaging requirements, please let us know, and we will follow your instructions.
For production time, standard products have a maximum daily output of 10,000 meters. Custom orders take 5 to 7 days to complete, and repeat orders are processed more quickly.
We sign contracts to ensure on-time delivery. During production, we can provide photos or videos for progress updates.
Our factory is located in Sanyuan County, and shipping is fast from this location.

Certifications and User Trust
We have not cooperated with major global brands. However, we have served over 30,000 users. Our reputation is built one customer at a time.
Our products have received honors such as Enterprise Credit Rating AA Level and Shaanxi Quality and Reputation Advanced Unit.
This Aluminum Downpipe is compatible with our aluminum gutter systems. The 50 mm pipe is used with the small gutter, while the 70 mm pipe is used with medium and large gutters.
We have used these downpipes in the Inner Mongolia project and the Yan'an residential project.
Specification Table
|
Parameter |
Name |
Model |
|
50 mm Downpipe |
Aluminum Downpipe |
DBB-057 |
|
70 mm Downpipe |
Aluminum Downpipe |
DBB-058 |
|
Matching Gutter |
Small (50 mm) / Medium–Large (70 mm) |
- |
|
Daily Output |
Max 10,000 meters |
Standard product |
|
Warranty |
10 to 30 years |
- |
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