| Material | FSC-certified solid or finger-jointed timber frame with exterior 6063-T5/T6 aluminum cladding, thickness ≥1.4 mm. |
| Finish | Interior: Sikkens water-based wood coating, clear or opaque | Exterior: AkzoNobel fluorocarbon coating, RAL/custom colors |
| Glass | Standard tempered IGU with KÖMMERLING 4SG warm-edge system; double/triple glazing and Low-E, laminated or ultra-clear glass available |
| Hardware | ROTO / HOPPE / MACO / SIEGENIA / G-U hardware options; concealed hinges available |
| Sealing | Multi-level automotive-grade EPDM sealing with co-extruded gaskets and 90° welded corners |
| Screen | 304 stainless steel or high-transparency mesh screen; integrated or add-on options available |
| Customization | Custom timber finish, aluminum color, glass, hardware, grilles and screen |
HUASIN is a China-based manufacturer of high-performance window and door systems. Founded in 1993 and headquartered in Harbin, HUASIN operates two major window and door production bases in Harbin and Wuhu, with a total manufacturing area of 288,000 m², an annual capacity of up to 500,000 m², and more than 500 employees. Our Hangzhou office serves as an international business office and sample showroom for overseas customer communication, product presentation, and project coordination. HUASIN specializes in aluminum clad wood windows, thermal break aluminum windows, passive-house-related high-insulation systems, lift & slide doors, sunrooms, curtain wall solutions, and customized project solutions. Built on cold-climate manufacturing expertise, we focus on all-season comfort through insulation, weather resistance, sealing performance, structural stability, and long-term durability. With over 500 engineering projects completed in China and overseas markets, and export experience in North America and the Middle East, HUASIN provides reliable, energy-efficient, and durable window and door solutions for builders, contractors, developers, distributors, and project customers worldwide.
We are a direct manufacturer with manufacturing bases covering approximately 280,000 square meters in Harbin and Wuhu.
We mainly manufacture aluminum alloy, aluminum-clad wood, and solid wood windows and doors. Our best-selling products include aluminum-clad wood sliding doors and tilt-and-turn windows.
The standard production lead time is approximately 25–35 days after receipt of the deposit and confirmation of the final drawings.
We provide a 10-year quality warranty covering the frame surface finish, hardware, and accessories under correct installation, operation, and maintenance. If any problem occurs, our team will evaluate the issue and provide the appropriate technical support or solution.
Yes. Our products have been tested or certified by recognized organizations, including PFB, PHI, NFRC, ENERGY STAR Canada, and Intertek. Additional testing and certification can also be arranged according to specific project or market requirements.