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Serie a is fixed:

Class b fixed

2 hours is fixed:

Half a broken bridge fixed fire detection window:

Half a broken bridge fixed fire detection window - have foam:

Half a broken bridge fixed fire detection window:

Half a broken bridge fixed fire detection window:

The broken bridge fixed fire detection window:

Half a broken bridge fixed fire detection window:

Broken bridge fire detection window:

Fire activity detection window:

Half middle-east activity fire detection window:

The middle-east activity fire detection window:

Half a broken bridge fixed fire detection window:

Half a broken bridge fixed fire window after the inspection, the fire surface:

After half a broken bridge fixed fire window detection - the fire surface:

Half middle-east activity fire detection - activity window closed:

Half middle-east activity fire detection, casement window closed:

Half middle-east activity fire detection, casement window closed:

Activities after fire window detection by the fire side:

China's national mandatory product certification 1

China's national mandatory product certification. 2

China's national mandatory product certification. 3