The use of Natural gas as an energy source offers multiple applications and this is generating strong demand for the implementation and expansion of urban and interurban distribution systems and it is necessary to build them fast, without impairing the quality of the works, so that services become promptly available. TRIX ENGENHARIA manages and carries out the implementation of access networks and extensions in natural gas distribution systems, offering the necessary infrastructure and experience to work all over the country. Trix is different because it can always provide the necessary structure catering for the needs of its customers, meeting deadlines and taking into consideration all the technical and operational aspects of each and every project and guaranteeing the safety of all people directly or indirectly involved in the works. • Urban Construction of distribution networks, supplying materials or not, enfolding the construction, assembly, conditioning works, tests and pre-operation, building of underground boxes, paving reconstitution, network signaling and 'as-built' elaboration. • Interurban Construction of distribution networks, supplying materials or not, enfolding the construction, assembly, conditioning works, tests and pre-operation, building of underground boxes, network signaling and 'as-built' elaboration.