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Dampers for industrial sector No Further a Mystery

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Nailor Model 0722 Ceiling Dampers are for use in round apps, in lieu of hinged door kind dampers in almost any UL/ULC floor/ceiling or roof/ceiling assembly with as many as a 3 hour fireplace resistance ranking the place air ducts are permitted. Model 1221G is a high overall performance combination fire/smoke damper specifically suitable https://alexisdwman.bloggactivo.com/36209249/heavy-duty-stainless-steel-damper-manufacturers-an-overview

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