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'micropalo samer consisting of a tube of cement micropalo samer consisting of a tube of reinforced concrete face of internal diameter and esternarmato centrifuged to internal diameter and external variable, provided with lateral holes or variable, provided with lateral holes
'micropalo samer consisting of a tube of cement micropalo samer consisting of a tube of reinforced concrete face of internal diameter and esternarmato centrifuged to internal diameter and external variable, provided with lateral holes or variable, provided with lateral holes