推拉铝合金门窗开关容易发涩，特别是阴雨连绵季节，这种现象就更为严重。产生这种状况的原因主要是铝合金材料受气温的影响，产生热胀冷缩。其次是天长日久，下面的凹槽积有灰尘，也使开关不滑溜。现介绍一种简便的治理方法：先将凹槽内的灰尘清理干净，然后用石蜡、蜡烛或肥 Sliding aluminum door and window switch easy to astringent, especially the rainy season, this phenomenon is even more serious. The main reason for this situation is the impact of aluminum material temperature, resulting in thermal expansion and contraction. Followed by the passage of time, the following groove dust, but also make the switch is not slippery. Is now introduced a simple method of governance: first clean the groove of dust, and then use paraffin, candles or fertilizer