My own company brand. Chengde Deao Mechanical and Electrical Equipment Sales Co., Ltd. was established in July 1 1, 2065438, located in COFCO Building, East District, Chengde City, Hebei Province. The company's elevator brand is its own brand, because the company mainly deals in elevators and accessories, hardware and building materials, wires and cables, household appliances, daily necessities sales, elevator installation and so on.