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Modern Aluminium French Door Casement System Double Glazed Thermal Break Exterior Large Glass Patio Interior Doors for Balcony
Product Description
Seamless Welded Frame
Precision laser welding technology creates a cleaner, more integrated appearance while helping reduce water leakage through frame gaps.
150 kg Load-Bearing Silent Rollers
Improves overall sealing and water resistance,helping reduce glass fogging and heat loss through the window frame.
Thermally Broken Aluminum Design
Enhances insulation performance, helps reduce whole-house energy consumption,and supports compliance with North American ENERGY STAR standards.
Multi-Point Safety Locking System
A three-point locking system provides tighter engagement and more balanced force distribution for improved sliding door security.
Custom Sizes
Different configuration options are available to help buyers match ventilation, light, and facade layout needs more efficiently.
Glass Options
Glass selection affects insulation,sound reduction, safety, and overall user comfort. We offer a variety of options to meet local market demands and diverse application scenarios.
| Screen | Optional Seamless Welded Sash |
| Profile Thickness | 2.0 mm Aluminum Thickness |
| Sash Width Specifications | 400mm-800mm |
| Glass | 5+20AR+5, thermally tempered safety glass |
Surface Treatment
ZhengJi is equipped with in-house powder coating, spray coating, and wood color processing, enabling a wide range of custom color options for aluminum windows to meet different design and application requirements.
Manufacturing Support Behind Stable Product Quality
Our strength is in upstream manufacturing control. With in-house extrusion, cutting, and CNC machining, we support more stable profile quality, clearer custom processing, and better consistency for bulk and project orders.
Project Applications
Suitable for distributors, contractors, and project buyers looking for practical aluminum window solutions for residential and light commercial use.
Company Certification
Our products are supported by certifications including CE, RoHS, IQNET, and ISO. These certifications reflect our focus on quality, compliance, and standardized manufacturing.
Zhengji: Premier maker of high-performance aluminum profiles & window/door systems. In-house mastery ensures quality & cost efficiency. • Fast Turnaround: Custom units fabricated & assembled in ≤15 days, handling bulk orders precisely. • Total Control: Manages entire chain—casting, extrusion, cutting, finishing, assembly—eliminating outsourcing risks. • Transparent Updates: Provides physical samples & real-time photos (extrusions, finishes, pre-assembly checks). • Rapid Response: Engineering support & detailed quotes within 30 mins, 24/7 on major platforms.
Features a multi-point latch system and high-density EPDM sealing strips for superior weatherproofing and security. Send us your door opening size to get a free price quote.
FAQs
Q
Do you accept custom sizes and designs?
Yes. Send us your shop drawings or dimensions (W×H), we confirm profile, glass, hardware, then issue shop drawing for sign-off before production.
Q
How can I find out your prices?
Send us your project spec or rough dimensions, we quote EXW/FOB within 24h with a breakdown (frame + glass + hardware + packing).
Q
What aluminum profiles do you use?
6063-T5 primary aluminum, wall thickness 1.8mm / 2.0mm / custom. Surface options: powder coated, anodized, wood grain, fluorocarbon.
Q
What glass configurations are available?
Standard: 5+20A+5 double glazed tempered. Options: Low-E, laminated, triple glazed, argon filled.
Q
How do you pack for sea shipping?
Foam corner protectors + PE film + paperboard + plywood crate / steel stillage. Glass edges taped. Loading photos and container No. sent before departure.
