Composition is tightly 、Reasonably 、Scientific knowledge 。 　The exterior generous sumptuous 。 　The import snaps that the temperature cools the bridge ，Coefficient of heat transfer K 。≤2.63w/m2.k 　Resisted wind pressure intensity is high ，Watertight 、The gastight performance is good ，Three quality quiz As grades 。 　5+12Empty glass among the A+5 ，The sound insulation performance is 40 dbs 。 　Broad trajectory ，Yet self-regulation twin idle wheel ，Pushing to draw does not easyly there is not the noise 。 　Three Yuan Yibing gum 。 　May manufacture into the window ，Still more being fit for doing four pushes to sliding door 。