[외국도서] Hvac: The Handbook of Heating, Ventilation and Air Conditioning for Design and Implementation + 4090 Sheet Metal / HVAC Pro Calc Calculator (Set) (Hardcover)
[외국도서] Metal Shaping Processes: Casting and Molding; Particulate Processing; Deformation Processes; And Metal Removal + 4090 Sheet Metal / HVAC Pro Calc Calc (Hardcover)