<p class="MsoNormal" quot;text-align: left; margin: 0.15pt 0cm 0pt; mso-layout-grid-align: none;" align="left"><span quot;font-size: small;"><span quot;font-family: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: Tahoma;">气密、水密性优越</span><span quot;mso-hansi-font-family: Tahoma;"> </span><span quot;font-family: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">提拉窗比左右推拉窗要紧密，这是窗的结构所决定的。传统的推拉窗是扇包框结构，也即是窗扇在左右开启时，是靠下部的滑轮在窗框滑轨上滑动来实现的。而滑轮和滑轨之间存在间隙，要兼顾开启时的顺畅程度，则不可避免的导致密封性能的下降。而提拉窗是框包扇结构，窗扇是被包在窗框内垂直上下运行，通过优异硅化毛条的多重密封，扇框四周贴</span> <span quot;font-family: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">合紧密密封性能要明显好于左右推拉窗，仅次于固定窗及平开窗。</span></span><span quot;font-family: Tahoma; color: black; font-size: 12pt; mso-font-kerning: 0pt;" lang="EN-US"></span></p>