Installation, repair and maintenance of machinery, namely air conditioning systems, heating systems, fire sprinklers, fire alarms, and security systems all being for buildings; and building maintenance and inspection services

Material testing including non-destructive testing; construction drafting; engineering drawing; engineering including industrial, civil and mechanical engineering; and chemical analysis

Electric monitoring apparatus including computer programmed monitoring apparatus; computers; computer programs in this class; temperature indicators; humidity indicators; time recorders; logs for measuring equipment; materials testing instruments and machines; quantity indicators; apparatus for recording devices; all the aforesaid goods being goods for use in building maintenance.