13-A    GI DUCT (FABRICATION – INSTALLATION)
   
13-B    ALUMINIUM CLADDING (DUCT & PIPES)

13-C    FIRE-RATED DUCT AND PAINT

13-D    FLEXIBLE DUCT

13-E     DUCT FLEXIBLE CONNECTION

13-F     VOLUME CONTROL DAMPERS

13-G    BACK DRAFT AND PRESSURE RELIEF DAMPERS 

13-H    ACCESS DOORS

13-I      FIRE DAMPERS

13-J      SMOKE DAMPERS

13-K    DAMPER ACTUATORS

13-L     SEALANT

13-M    SAMPLES