Drainage Systems

Capillary Drain Plate

Capillary Drain Plate

Capillary Drain Plate is designed for roof gardens, outdoor drainage layers, greening project solution work, and garden slope drainage board applications. The HDPE material drainage plate stores and moves water through a plastic capillary drainage board structure, helping green roofs, park reservoirs, and landscape slopes drain steadily.
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Drainage Mat

Drainage Mat

Drainage Mat combines Drainage Sheet mat, Drainage Geonet, Geocomposite Drainage Sheet, and wave shaped plastic drainage pad options for roof, road, mining, salt barrier, and landscape drainage projects. It creates water flow space while supporting filtration, isolation, and project-based drainage design.
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Hard Permeable Pipe

Hard Permeable Pipe

Hard Permeable Pipe is designed for water permeable road drainage pipe systems, slope drainage, park drainage, and dam drainage projects. The rigid pipe structure combines high compressive strength with excellent water permeability for buried drainage and seepage control work.
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Plastic blind ditch

Plastic blind ditch

Plastic Blind Ditch is a rigid underground drainage product used for roadbeds, foundations, retaining walls, slopes, and buried water collection layers. Blind Drain Ditch structures guide water through a pressure-resistant plastic core and filter package cloth.
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Storage and drainage board

Storage and drainage board

Storage and drainage board is a subsurface storage drainage solution for green roofs, underground garage floor systems, retaining walls, and roof plate drainage. The Drain dimple waterproof board stores part of the water while guiding excess flow away through a dimpled HDPE drainage structure.
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Frequently Asked Questions

Who can become a CHANGFENG distributor?
Companies selling construction materials, geosynthetics, drainage products, road materials, agricultural ground covers, or engineering project supplies can contact us for cooperation.
What advantages can CHANGFENG provide?
We provide factory-direct pricing, stable supply, multiple product categories, technical support, export packing, and project documentation support.
Can private label or OEM packing be arranged?
Yes. We can discuss private labels, cartons, roll labels, pallet marks, product documents, and OEM/ODM cooperation according to order volume.
Can you support project-based tenders?
Yes. Product specifications, sample confirmation, packing photos, test documents, and loading records can be prepared for suitable project orders.
How can we start cooperation?
Please share your country, sales channels, target products, expected order quantity, and whether you need distributor pricing, private label support, or project documents.
Can we request product samples?
Yes. Distributors can request product samples with basic specification sheets and test data before placing formal orders.
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More Than a Manufacturer

Your Solutions Partner

We bridge the gap between factory-direct efficiency and engineering expertise. Whether you're navigating strict regulations or complex site conditions, our team delivers the 'Unseen Strength' your project requires through deep technical collaboration.

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Expert Collaboration

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Factory Authority

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