Heavy - (of sleep) deep and entire; "a heavy snooze"; "fell into a profound sleep"; "a seem sleeper"; "deep wakeless slumber" Types 0110DOW, 0120DOW, 0110GOW and 0120GOW are "from wall or floor" integral sleeve static curtain kind fire dampers.  Product 0110GOW and 0120GOW are precisely created for offer or return https://dampers-for-industrial-se22344.qodsblog.com/37108702/5-tips-about-heavy-duty-stainless-steel-damper-manufacturers-you-can-use-today