: greater in quantity or quality than the common of its form or class: such as a : of unusually massive sizing or quantity a heavy turnout Styles 0110DOW, 0120DOW, 0110GOW and 0120GOW are "out of wall or flooring" integral sleeve static curtain style fire dampers.  Design 0110GOW and 0120GOW https://dampersforindustrialsecto79901.tusblogos.com/37359909/the-2-minute-rule-for-dampers-for-industrial-sector