| Profile thickness | Frame thickness: 1.8mm | Fan thickness: 1.8mm |
| Specification | Fan width: 650mm - 900mm | Fan height: 1500mm - 3000mm |
| Glass | 5mm+27A+5mm double tempered ( single glass notch is 13mm ) | |
| Grills | Bifold door series are normally square grills or diamond grills ( 27 A hollow ) | |
| Blinds | Magnetic control blinds and electric blinds | |
Our folding door pulleys are made of high quality materials and precision machining and can hold up to 300kg.
The precision-designed handle offers a comfortable feel, smooth operation, and anti-theft features, ensuring both security and convenience.
The high-quality hinge design ensures smooth door operation, strong load-bearing capacity, and is resistant to corrosion and durable, extending the service life.
Opens up to 180°, providing 6m of passage. When folded, it saves up to 80% of floor space.
Reduces noise by up to 40dB, waterproof ≥500Pa, wind resistance ≥2500Pa, U-value 0.13W/ft²·K, and 25%-30% energy savings.
90° corner customization, up to 8 panels, with various colors and finishes.
High-quality, durable, and reliable window and door manufacturers & suppliers & wholesale in China! Our WANJIA® operation center has more than 170 employees, and more than 300 staff working in factory. We possess extensive experience in both international trade and production. Whether you require assistance in selecting standard sizes or customizing windows and doors, we are capable of providing professional solutions for your residential or commercial projects.
WANJIA's window and door products are widely sold to international markets including North America, Europe, Australia, New Zealand, Southeast Asia, and more.
The system features a 1.8mm frame and fan thickness. Individual fan widths range from 650mm to 900mm, with heights supported from 1500mm up to 3000mm.
It comes standard with 5mm+27A+5mm double tempered glass (single glass notch is 13mm). The high-performance structure achieves a low U-value of 0.13W/ft²·K, reduces noise by up to 40dB, and delivers 25%-30% energy savings.
The precision-machined heavy-duty pulleys can hold up to 300kg, ensuring smooth operation, corrosion resistance, and prolonged operational lifespan.
We provide 90° corner configurations, up to 8 opening panels, square or diamond hollow grills (27A), integrated magnetic or electric blinds, and custom colors and finishes.
Every door undergoes an 8-stage manufacturing process: Cutting, Corner Brace Hole Opening, Corner Brace Installation, Glass Cleaning, Glass Assembly, Precision Gluing, Rigorous Testing, and Secure Packing.
Yes, the doors deliver waterproof performance ≥500Pa and wind resistance ≥2500Pa. Security is enhanced with precision-engineered multi-point anti-theft handles and durable locking hardware.