	Steel structures
	Tanks and silos
	Dust collecting equipment
	Mechanical installation
	Piping systems
	Electrical installations, instrumentation
	Waste water treatment
	Heating, ventilation air conditioning
	Gas supply and distribution
	Fire prevention installations
	Erection of lifting equipment
	Plants erection

Industrial electrical installations, instrumentation and automation

-	Electrical installations for industrial plants;
-	Lightening installations;
-	Feeding lines;
-	Power installations;
-	Lightning protection systems;
-	Grounding installations;
-	Weak current installations;
-	Sounding and signaling systems;
-	Fire-alarm installations;
-	Access control installations;
-	Security and observation installations;