Tianjin Qianxin International Trade Co., Ltd.
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+8613752560008

Small sink
PRODUCT PARAMETERS
- Product Name: Small Drainage Channel / Secondary Drainage Channel
- Material: Q235B Galvanized Steel / Aluminum Alloy / Stainless Steel
- Surface Treatment: Hot-dip Galvanized / Anodized / Powder Coated
- Length: 1000 mm – 3000 mm customizable
- Width: 50 mm – 200 mm customizable
- Thickness: 0.8 mm – 2.5 mm customizable
- Color: Silver / Natural Metal / Customized
- Shape: U Type / M Type / Custom Profile
- Function: Rainwater Collection and Drainage
- Installation Method: Bolt Fixing / Clamp Fixing / Customized
- Corrosion Resistance: ≥20 years depending on material and environment
- Application: BIPV Waterproof Solar Roof System, PV Mounting System, Steel Structure Roof Drainage
- Customization: Size, thickness, hole position, surface treatment, and profile shape can be customized
- Location: China
Description
The small drainage channel is used in BIPV waterproof solar roof systems and photovoltaic bracket systems. It is mainly installed between PV modules or beside the main gutter to guide rainwater and improve roof waterproof performance.
Made of galvanized steel, aluminum alloy, or stainless steel, it offers good corrosion resistance, easy installation, and stable drainage performance. Size, thickness, and shape can be customized according to project requirements.

FAQs
Yes, we have extensive export experience and can arrange worldwide shipping.Installation is simple. We provide detailed drawings and technical guidance, with remote support if needed.
We specialize in photovoltaic mounting systems, including seismic brackets, flexible mounting systems, Zn-Al-Mg coated and hot-dip galvanized structures. We also provide solar carport solutions, concrete pile foundations, ground screws, maintenance walkways, aluminum rails, and various PV accessories. Additionally, we manufacture CZU steel sections, cable trays, square/rectangular tubes, and round pipes.ch.
Our products are mainly made of hot-dip galvanized steel and Zn-Al-Mg coated steel, offering excellent corrosion resistance and long service life in various environments.
Yes, our engineering team provides structural design, system solutions, and optimization support for your projects.















