Acting in the ornamental rocks setor since 1985 , the GRUPO MARTS (MARTS Group) has been developing its work with seriousness and competence. Compounded by four big companies (Minera??o Três Cora??es , Guimar and Minera??o Veneza, the GRUPO MARTS offers to its clients a vast line of products and services. Always searching for the total quality, the GRUPO MARTS is one of the enterprises that more invests in the innovation of its equipments. Know our company through details. Make , also , part of our clientele and usufruct our benefits