Collection: Bottom Channel Series

Chuanlan offers a complete bottom channel series covering U-channel, L-channel, and custom-profile designs, compatible with glass thicknesses from 8mm to 21.52mm. Whether your project requires standard or non-standard profiles, our full-series inventory ensures you never need a second supplier.

Our bottom channels are available in multiple materials to suit any project specification: high-grade 6063-T5 aluminum alloy, 304/316 stainless steel, and carbon steel with surface treatment. Each material is stocked in standard sizes and available for custom orders — one factory, all materials.

With an extensive range of profile widths, depths, and wall thicknesses held in warehouse stock, Chuanlan supports fast wholesale fulfillment for distributors and contractors. Standard lengths of 2.5m, 3m, and 6m are available, with cut-to-length service for project-specific requirements.

As a direct manufacturer with in-house extrusion tooling capability, Chuanlan supports full OEM and ODM customization: custom profile dimensions, custom alloy grades, custom surface finishes, and private label packaging. From engineering drawing to mass production in as little as 15 working days.

Every bottom channel batch undergoes four levels of quality inspection: incoming raw material certification, post-extrusion dimensional verification (±0.1mm tolerance), surface finish grading, and pre-shipment final inspection. Full QC documentation and material test reports provided with every wholesale order.

As the factory behind the product, Chuanlan offers true wholesale pricing with no distributor markup. Minimum order quantities are flexible for new clients, with tiered pricing for volume orders. Stable production capacity supports large-scale and repeat orders for global distributors, importers, and project contractors across 30+ countries.