Tinghu district Tengda Rolling Gate Factory of Yancheng City and Jinlong Sliding Door Factory of Dafeng District of Yancheng City are factories that make sliding doors to the west of the West Ring Road of Yancheng City. Sliding door, also known as sliding door, is a common door in the family, which refers to a door that can be pushed and pulled. With the development of technology and the diversification of decoration means, the function and application scope of sliding doors are constantly expanding from the traditional panel to glass, cloth, rattan and aluminum alloy profiles, from sliding doors and folding doors to partition doors.