钢质门[Steel door]

钢质门[Steel door]

气动应急关闭百叶窗[Pneumatic emergency closing shutter]

无门水密百叶窗[Watertight door shutter]

通风栅[Ventilation grid]

双层百叶栅[ Double shutter]

单层百叶栅[ Single louver]

侧壁式风栅[Side wall wind grid]

菌型通风筒[ Bacteria type ventilator]

金属弹性支承[Metal elastic support]

管道消音器[Pipe silencer]

固定悬挂吊架[Fixed hanger]