40.10.00 Gas and Vapor Process Piping and Ductwork

40.11.00 Steam Process Piping

40.11.13 Low-Pressure Steam Process Piping 40.11.16 Intermediate-Pressure Steam Process Piping 40.11.19 High-Pressure Steam Process Piping 40.11.23 Condensate Process Piping for Process Applications

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