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Legend of ventilation and air condition free AutoCAD drawings

Legend of ventilation and air condition dwg, CAD Blocks, free download.
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Air handling unit, exhaust fan, radial type exhaust fan, wall type exhaust fan, supply air duct, return and exhaust air duct, return air through for suspended ceiling, duct type silencer, volume damper, fire damper, duct adaptor piece, plenum box, flexible duct, supply air diffuser, supply grille, disc valve, exhaust and return air grille, egg crate grille, slot diffuser, air transfer grille on door, air transfer gap under door.
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zahri jamal
zahri jamal
March 10 (2018)
very well