Window frames of metal; Metal door frames; Building panels of metal; Metal louvers for guiding light

'build':8 'door':6 'frame':2,7 'guid':15 'light':16 'louver':13 'metal':4,5,11,12 'panel':9 'window':1

Non-metal windows; Window glass for building; Building glass; Glass panels for building construction purposes

'build':8,9,14 'construct':15 'glass':6,10,11 'metal':3 'non':2 'non-met':1 'panel':12 'purpos':16 'window':4,5

Installation of doors and windows; Building construction

'build':6 'construct':7 'door':3 'instal':1 'window':5

ESR

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