国产亚洲精品香蕉视频,找特级大黄片鸡巴插进大逼里,白白发布会视频完整版免费,久 ,白白发布在线视频精品,白白发布在线观看,白白发布在线,白白精品视频免费视频,白白色发布在线

Energy-saving Fire Rated Glazing Window

1337

Refractory window technology parameters

Fire Performance   

  0.5h、1.0h

Thermal Insulation 

K=1.95 W/(m2·K)

Air Permeability  

Level 8 (8level

Watertightness  

Level 5 (5level)

Wind Load Resistance  

Level 9 (9level)


Recommended news
Recommended Products