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"EHVAC." Fullformexpand.com, https://www.fullformexpand.com/ehvac/366289. Accessed 3 Jan. 2026.
Fullformexpand.com, 2026. "EHVAC." Accessed January 3, 2026. https://www.fullformexpand.com/ehvac/366289.
"EHVAC." (n.d.). Fullformexpand.com. Retrieved January 3, 2026, from https://www.fullformexpand.com/ehvac/366289.
EHVAC. (2026). Fullformexpand.com. Available at: https://www.fullformexpand.com/ehvac/366289 (Accessed: 3 January 2026).