External steel door Metal door Metal door supplier 1. Long history: since 1984, we own 30 years�?? professional experience in producing doors and good reputation. 2. Volume-produce: large-scale manufacture with advanced equipment line to ensure volume-produce. 3. Good location: our company is located in qingdao near to qingdao port and qingdao airport. 4. Products diversification: products include many kinds of doors, prison door, wood interior door, fire door, steel entrance door to satisfied client�??s different demands
