... ), Steel structure, Air Preheater (APH), Gas-Gas Exchanger (GGH), Steel structure, Duct, Pneumatic Ash Conveying System(PACS), Flue Gas Desulphurization System ( FGD), Harbour Cargo ... plates of GS480, GS750 and GS800, discharging wires, powder coating treatment and Aluminum Anode Oxidization. Flue Gas Desulfurization System