🏭 1. Raw Material Cutting
Non-woven fabric/fiberglass materials sourced from high-quality suppliers in South Korea or China are first precisely cut using automated cutting equipment.
🔄 2. Folding, Forming, and Gluing
An automatic pleating machine folds the material into a "W" shape at the specified intervals, followed by automatic hot-melt adhesive application to ensure uniform shaping and stable airflow.
🔧 3. Frame Assembly
Based on customer requirements (aluminum frame, iron frame, or plastic frame), different materials are selected for assembly and edge pressing to ensure a secure and airtight frame.
📦 4. Testing and Packaging
ZOSLONG performs visual inspection, pressure damage inspection, and dimensional verification before shipment to ensure 100% compliance. Packaging options include custom labels, neutral cartons, or palletized containers.