Premium OEM aluminum frame 28 casement window profile for durable and sleek window solutions. Crafted with high-grade aluminum alloy for superior strength and corrosion resistance. Precision-engineered for smooth operation and long-lasting performance in residential and commercial settings. Factory-direct pricing ensures unbeatable value for bulk buyers. Ideal for modern construction projects requiring lightweight yet sturdy window frames. Customizable sizing and finishes available to match any architectural style. Low-maintenance design withstands harsh weather conditions effortlessly. Streamlined profile enhances energy efficiency with excellent thermal insulation. Perfect for contractors and builders seeking reliable wholesale window components. Direct from China manufacturer with strict quality control standards.