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Business area initially not deserve the right attention, it has been coming to be  increased and developed  to  the  most  several  applications  than  they go by the  asphalt, fresh cement, drilling or concrete cut, etc.       The  Casa  Dos  Diamantes  applying  to  this  sector  whole  knowledge with the  diamonds tools in the other  areas,  has  state  to  develop this with great success  and self-confidence.