United Kingdom NDA or MOD sites). (h). Heat transfer surface cleaning systems and support subsystems, equipment and components thereof (other than said systems related to or utilized in connection with nuclear fueled systems and expressly excluding nuclear steam generators), including sootblowers (air, steam, water or sonic), related valve or piping systems, sprayers, controls (basic, intelligent) or diagnostics, other than maintenance and operation services performed as part of overall facility operation and management contracts for domestic or foreign government agencies or entities (including but not limited to NNSA, NASA, DOD, DOE, as well as United Kingdom NDA or MOD sites). (i). Ash handling systems or support subsystems, equipment or components thereof, including mechanical conveyors (wet or dry), pneumatic conveyors (wet, dry, dilute, or dense phase), ash conditioning, tanks, valves, specialty piping, controls or diagnostics, other than maintenance and operation services performed as part of overall facility operation and management contracts for domestic or foreign government agencies or entities (including but not limited to NNSA, NASA, DOD, DOE, as well as United Kingdom NDA or MOD sites). (j). Industrial pulverizer or grinding equipment systems or support subsystems (other than said systems or support subsystems related to or utilized in connection with nuclear fuel manufacturing or processing), other than maintenance and operation services performed as part of overall facility operation and management contracts for domestic or foreign government agencies or entities (including but not limited to NNSA, NASA, DOD, DOE, as well as United Kingdom NDA or MOD sites). (k). Drying and/or coating systems utilizing continuous and/or batch flow dryer/oven equipment for industrial processes, including but not limited to various production lines (e.g., roll fed, sheet fed, coating, drying or web handling), dryers and/or ovens (e.g., air flotation dryers or ovens, roll support dryers, infrared dryers, ultraviolet dryers, microwave or radio frequency), coating