<p class="MsoNormal" quot;text-align: left; margin: 0cm 0cm 0pt; mso-layout-grid-align: none;" align="left"><span quot;font-family: 楷体_GB2312; color: black; font-size: 12pt; mso-font-kerning: 0pt; mso-bidi-font-family: 楷体_GB2312;">传统窗型中，固定窗是难于清洁的。在当今建筑中被大量采用的大固定、小开启的 </span><span quot;font-family: Arial; color: black; font-size: 12pt; mso-fareast-font-family: 楷体_GB2312; mso-font-kerning: 0pt;" lang="EN-US">“</span><span quot;font-family: 楷体_GB2312; color: black; font-size: 12pt; mso-hansi-font-family: Arial; mso-font-kerning: 0pt; mso-bidi-font-family: 楷体_GB2312;">飘窗</span><span quot;font-family: Arial; color: black; font-size: 12pt; mso-fareast-font-family: 楷体_GB2312; mso-font-kerning: 0pt;" lang="EN-US">”</span><span quot;font-family: 楷体_GB2312; color: black; font-size: 12pt; mso-hansi-font-family: Arial; mso-font-kerning: 0pt; mso-bidi-font-family: 楷体_GB2312;">中外开窗只照顾到气密、水密性等，但当外玻璃脏污后清洁将变得不方便，推拉窗总有一扇是不能清洁的 </span><span quot;font-family: Arial; color: black; font-size: 12pt; mso-fareast-font-family: 楷体_GB2312; mso-font-kerning: 0pt;" lang="EN-US">…… </span><span quot;font-family: 楷体_GB2312; font-size: 12pt; mso-hansi-font-family: Wingdings; mso-font-kerning: 0pt; mso-bidi-font-family: 楷体_GB2312;">上下提拉窗的内倒功能打破其他窗型清洁困难的缺点，使在室内做清洁变得更为轻松、容易，双扇内倒做清洁，没有卫生死角，既安全又方便，成为提拉窗的又一大亮点。<span lang="EN-US"></span></span></p>