Round industrial duct construction standards
By: Sheet Metal and Air Conditioning Contractors' National Association
Contributors: Sheet Metal and Air Conditioning Contractors' National Association (U.S.)
Edition: 2nd ed.
Publisher: Sheet Metal and Air Conditioning Contractors' National Association
Published: 1999
Place of publication: Chantilly, Va
Language: eng
Subjects: Air ducts -- Design and construction.; Ventilation -- Equipment and supplies.
Notes: Order no.: SMACNA 1520.