97711474
Dec 9, 2022
Heat exchangers for industrial and non-industrial use, comprising convectors and convection sections, fuel economizers, extended surface heat exchanger coils, hold-over truck plates, domestic, commercial and industrial solar absorbent panels, and other related vapor-to-liquid or liquid-to-liquid heat transfer applications
Environmental Control ApparatusRepair, maintenance and replacement of heat exchangers and heat exchanger parts
Building Construction and Repair