Penetrations Through 'A' Class Divisions - Pipe, Duct, Truck Etc Penetrations (“HRT and HRST” Single or Multiple Pipe Circular Penetration and Hawke threaded "CBT" sleeves for HRST Single pipe penetration seals)

Penetrations Through 'A' Class Divisions - Pipe, Duct, Truck Etc Penetrations (“HRT and HRST” Single or Multiple Pipe Circular Penetration and Hawke threaded "CBT" sleeves for HRST Single pipe penetration seals). Category: Penetrations through 'A' class divisions: pipe, duct, trunk, etc. penetrations. Module: B. Manufacturer: Hawke Transit System, S.L..