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C. Installation and assembly work
C. Installation and assembly work
54342
Septic system installation services
249
Construction services
54400
Assembly and erection of
prefabricated constructions
249
Construction services
54611
Electrical wiring and fitting services
249
Construction services
54612
Fire alarm installation services
249
Construction services
54613
Burglar alarm system installation
services
249
Construction services
54614
Residential antenna installation
services
249
Construction services
54619
Other electrical installation services
249
Construction services
54621
Water plumbing services
249
Construction services
54622
Drain laying services
249
Construction services
54631
Heating installation services
249
Construction services
54632
Ventilation and air conditioning
installation services
249
Construction services
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