PVC sliding doors offer a space-saving and modern solution for homes, villas, and commercial spaces. Designed with smooth-gliding rollers, these doors operate horizontally and are perfect for patios, balconies, or garden entrances. Crafted from high-quality uPVC and internally reinforced with galvanized steel, they provide excellent durability, insulation, and weather resistance. The double-glazed Low-E glass enhances energy efficiency and noise reduction. Available in multiple colors and finishes, our sliding doors also feature secure locking systems and sleek design. Easy to operate and maintain, they are ideal for buildings where performance and aesthetics are equally important. series: 140 series PVC opening style: sliding Glass: 5mm+9A+5mm clear tempered glass Certification: NFRC, AAMA, CE, TITLE 24, AS2047 U-Factor  ≤ 0.3 SHGC ≤ 0.23

PVC doors are engineered to deliver superior performance, visual appeal, and long-term durability. Manufactured using premium uPVC (unplasticized polyvinyl chloride), these doors are highly resistant to moisture, corrosion, and UV rays, making them an ideal choice for both interior and exterior applications. One of the key benefits of our PVC doors is their excellent insulation performance. The multi-chambered profile design minimizes heat transfer and enhances energy efficiency. When combined with double or triple glazing and high-quality weather seals, our PVC doors help reduce energy consumption while also improving indoor comfort by minimizing noise and drafts. KDSBuilding offers extensive customization options to meet different architectural styles and project needs. Choose from a range of door types—single swing, French, casement, or tilt-and-turn—available in various sizes, colors, and surface finishes including matte, glossy, and woodgrain textures. Doors can be fitted with decorative panels or full-glass inserts using tempered or laminated safety glass. series: 60 series PVC opening style: Casement (Swing) Glass: 5mm+9A+5mm clear tempered glass Certification: NFRC, AAMA, CE, TITLE 24, AS2047, Energy Stay U-Factor  ≤ 0.3 SHGC ≤ 0.21 Visible Transmittance: 0.41 Air Leakage: 0.15

PVC doors are the ideal solution for homeowners and developers seeking reliable, low-maintenance, and stylish entry or patio door systems. These doors are especially popular in residential settings such as apartments, villas, and townhouses, where performance and appearance are equally important. Each PVC door is designed for maximum functionality. Whether used as a front entrance, garden access, or balcony door, our products ensure excellent weather resistance, noise insulation, and energy savings. The uPVC material is corrosion-proof and does not require painting or frequent maintenance, making it an economical long-term investment. Our PVC door systems come with high-quality hinges, handles, and multi-point locking mechanisms to enhance security and ease of use. Glazing options include single, double, or triple layers of tempered or Low-E glass, delivering both transparency and insulation. series: 60 series PVC opening style: Casement (Swing) Glass: 5mm+9A+5mm clear tempered glass Certification: NFRC, AAMA, CE, TITLE 24, AS2047, Energy Stay U-Factor  ≤ 0.3 SHGC ≤ 0.21 Visible Transmittance: 0.41 Air Leakage: 0.15

PVC doors are a modern solution combining durability, energy efficiency, and low maintenance. Made from high-grade unplasticized polyvinyl chloride (uPVC), our doors are designed to resist warping, rusting, and fading, making them ideal for long-term indoor and outdoor use in various climates. Our PVC doors are available in multiple configurations, including single swing, double swing, and French-style casement doors. They can be customized with full glass, half glass, or panel designs, using insulated glass units (IGUs) with options like Low-E, laminated, or tempered glass. Each door is internally reinforced with galvanized steel for added strength and stability, ensuring resistance against wind, impact, and deformation. series: 60 series PVC opening style: Casement (Swing) Glass: 5mm+9A+5mm clear tempered glass Certification: NFRC, AAMA, CE, TITLE 24, AS2047, Energy Stay U-Factor  ≤ 0.3 SHGC ≤ 0.21 Visible Transmittance: 0.41 Air Leakage: 0.15

A steel door is a durable, secure, and low-maintenance option commonly used in both residential and commercial buildings. Constructed with a steel outer layer and often filled with insulating materials like polyurethane or honeycomb core, these doors offer excellent strength, fire resistance, and energy efficiency. Steel doors are ideal for exterior use due to their ability to withstand harsh weather, resist warping, and provide enhanced protection against forced entry. Available in a variety of finishes, colors, and designs, they can also be customized to match different architectural styles while ensuring long-lasting performance and safety.

Aluminum casement doors offer a classic opening style combined with modern durability. Built with high-strength aluminum profiles, they provide excellent structural stability and long service life. The outward or inward opening design allows full ventilation, while advanced sealing systems enhance air tightness, water resistance, and overall energy efficiency. series: 112 series thermal break opening style: Casement Glass: 5mm+9A+5mm clear tempered glass Certification: NFRC, AAMA, CE, TITLE 24, AS2047 U-Factor  ≤ 0.3 SHGC ≤ 0.23

This aluminum casement door features a sturdy aluminum frame and precision hardware for smooth and reliable operation. The hinged design allows the door to open fully, maximizing airflow and accessibility. With customizable colors and glazing options, it is ideal for residential entrances, balconies, and commercial spaces. series: 112 series thermal break opening style: Casement Glass: 5mm+9A+5mm clear tempered glass Certification: NFRC, AAMA, CE, TITLE 24, AS2047 U-Factor  ≤ 0.3 SHGC ≤ 0.23

The hinges are installed on one side of the window sash and connected to the window frame. According to the outward or inward opening, this type of window is divided into outer casement window and inner casement window. The characteristics of this kind of window are: simple structure, flexible opening, easy to clean, and good sealing performance when closed, and it is the most widely used window type in civil construction. A style of window in a folk house. The opening and closing of the window sash moves along a certain horizontal direction, so it is called "casement window". Flip window and sliding window two kinds. There are multiple single Windows, which turn upward when opened and are fixed by the iron rod support on the window frame; Some also turn down and open to a certain extent to hold the chain on the window frame. Push and pull more than two Windows. When opening and closing, the window sash slides horizontally along the slot of the window frame, or slides up and down. The front window of the houses in the northern Siheyuan is mostly turned over. The center of the window is inlaid with wooden mullion and pasted with white paper. When the window is opened, it turns outward. In the south, it is also common to flip Windows in the attic and ceiling.