engineering services; engineering services provided in the fields of plumbing, piping, heating, ventilation, and air conditioning systems; engineering services, namely, design of plumbing, piping, heating, ventilation, and air conditioning systems

'air':15,28 'condit':16,29 'design':21 'engin':1,3,18 'field':8 'heat':12,25 'name':20 'pipe':11,24 'plumb':10,23 'provid':5 'servic':2,4,19 'system':17,30 'ventil':13,26

mechanical contractor services; general construction contracting; construction, servicing, and maintenance of plumbing, piping, heating, ventilation, and air conditioning systems

'air':17 'condit':18 'construct':5,7 'contract':6 'contractor':2 'general':4 'heat':14 'mainten':10 'mechan':1 'pipe':13 'plumb':12 'servic':3,8 'system':19 'ventil':15

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