Subjects: *PLUMBING industry; *HEATING equipment industry; *EMPLOYMENT forecastingUNITED States
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Subjects: *COMMERCIAL courts; *529 plans; *ENGINEERS
Subjects: *PLUMBING industry; *PLASTIC extrusion; *LUMBER industry
Subjects: *PLUMBING industry
Subjects: *HEATING & ventilation industry; *PLUMBING industry; *EXHIBITION buildingsCLEVELAND (Ohio)
Subjects: *PLUMBING industry; *INSURANCE; *INSURANCE companies
Subjects: *PLUMBING industry; *PLUMBING; *COMMERCIAL aeronautics
Subjects: *PLUMBING industry; *HEATING & ventilation industry; *MARKET valueUNITED States
Subjects: *PLUMBING industry; *MARKET value; *MARKET segmentationUNITED States