Coating of drains; Services for the repair of canals; Cleaning of drains; Repair of canalization systems; Maintenance and repair of pipeline systems; Services for the repair of pipelines; Pipeline installation and repair; Maintenance and repair of pipelines.

Coating of drains; Services for the repair of canals; Cleaning of drains; Repair of canalization systems; Maintenance and repair of pipeline systems; Services for the repair of pipelines; Pipeline installation and repair; Maintenance and repair of pipelines.