Interests

• Mining support services
• Oil and natural gas extraction support activities
• Services related to oil extraction except surveying services
• Services related to natural gas extraction except surveying services
• Other activities related to oil and natural gas extraction support activities
• Construction of buildings
• Construction of buildings
• Construction of all types of other not previously mentioned non-residential buildings
• Civil engineering
• Construction of utility projects
• Long-distance pipelines, communication and power lines
• Specialized construction activities
• Electrical installation
• Electrical wiring
• Telecommunications wiring
• Network wiring
• Other electrical and telecommunications wiring activities
• Installation of computer network and cable television wiring
• Other computer network and cable television wiring installation activities
• Installation of lighting systems
• Other types of electrical installation
• Installation and maintenance of safety devices
• Plumbing, heat and air-conditioning installation
• Installation, maintenance and repair of refrigeration or air-conditioning equipment

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