| 摘要 |
A frame structure for a plastic window frame structure includes four plastic casings, four steel bushings, and four angled insertion members. The plastic casings are integrally connected with each other by welding to form a rectangular frame. Each of the steel bushings is axially mounted in a respective one of the plastic casings. Each of the insertion members is mounted in the plastic casings and mounted on any two adjacent steel bushings to connect the steel bushings. Thus, the steel bushings are connected by the insertion members, so that the steel bushings are combined integrally, thereby greatly enhancing the structural strength of the frame structure.
|
