Being supported by an advanced and professional IT team, we could offer technical support on pre-sales & after-sales service for Big Air Industrial Fan, Self-Recovery Rapid Doors , Automatic Roll Up Door , Swing Glass Door ,High Speed Automatic Rollup Doors . Now we have experienced manufacturing facilities with extra than 100 employees. So we could guarantee short lead time and high quality assurance. The product will supply to all over the world, such as Europe, America, Australia,Russia , Latvia ,Paris , Durban .The design, processing, purchasing, inspection, storage, assembling process are all in scientific and effective documentary process , increasing usage level and reliability of our brand deeply, which makes us become superior supplier of the four major product categories shell castings domestically and obtained the customer's trust well.