推拉门窗的五金配件。铝合金门窗的导轨是在窗框型材上直接成型，滑轮系统固定在门窗扇底部。推拉门窗的滑动是否自如不仅取决于滑轮系统的质量，而且与型材平直度和加工精度以及门窗框安装精度有关。积尘对轨道和滑轮的磨损也会影响推拉门窗的开关功能。推拉门窗的锁一般是插销式锁，这种锁会因为安装精度不高、积尘等原因而失效。推拉门窗的拉手通常由插销式锁的开关部分所代替，但也有高档推拉窗将窗扇型材作出一个弧型，起拉手的作用。
Push and pull the hardware of doors and windows. The guide rail of aluminum alloy doors and windows is directly formed on the window frame profile, and the pulley system is fixed at the bottom of the door and window sash. Whether the sliding of sliding doors and windows is easy or not depends not only on the quality of pulley system, but also on the straightness and processing accuracy of profiles and the installation accuracy of door and window frames. The wear of tracks and pulleys caused by dust accumulation will also affect the opening and closing functions of sliding doors and windows. The lock of push-pull doors and windows is generally a pin type lock, which will fail due to low installation accuracy, dust accumulation and other reasons. The handle of sliding doors and windows is usually replaced by the switch part of the latch lock, but there are also high-grade sliding windows which make the profile of window sash into an arc shape to play the role of handle.