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A PROCESS FOR THE MANUFACTURE OF PRECAST LOAD-BEARING MANHOLE COVER ASSEMBLY USING PLASTICS FIBRE-REINFORCED CONCRETE AND SUCH ASSEMBLY MANUFACTURED BY THE SAID PROCESS
A PROCESS FOR THE MANUFACTURE OF PRECAST LOAD-BEARING MANHOLE COVER ASSEMBLY USING PLASTICS FIBRE-REINFORCED CONCRETE AND SUCH ASSEMBLY MANUFACTURED BY THE SAID PROCESS