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During the two-wing expansion of the Shire Human Genetic Therapies building in Lexington, Mass., SMACNA member Walsh Mechanical Contractors of Abington, Mass., designed, fabricated, and installed more than 13,000 linear feet of spiral ductwork to support the facility’s research and development work.
Johns Hopkins Hospital has completed a massive $1.1 billion expansion project that included the construction of two 12-story towers. SMACNA contractor United Sheet Metal Inc. (USM), Capitol Heights, Md., used four million pounds of galvanized and stainless steel sheet metal for the HVAC systems.
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