Automatic Overhead Sectional Door

Industrial overhead sectional doors are made from polyurethane sandwich panels. Several separate door panels are joined together into a whole body, to climb up and down directly along the wall and ceiling. This is a quite different way of opening from traditional roller shutter doors, which roll up by coiling. Automatic overhead sectional doors have several advantages compared with other types industrial use doors:  1. Excellent thermal insulation; 2. Fast running speed; 3. High frequency running; 4. Low maintenance; 5. Good wind resistance.   And its purchase price is medium and applicable for different budgets. All above factors make the overhead sectional door one of the popular industrial doors in all types of factory, warehouse, workshop, logistics, cold room, 4S Car Stores, fire stations and commercial buildings.    Fast opening and closing…