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METHOD AND DEVICE FOR CLOSING LEAKAGE ARISING IN PLACED PIPING RESPECTIVELY FOR REPAIRING THE FAILURE CARRIED OUT FROM WITHIN AND GRANULAR SEALIN COMPOUND FOR CARRYING OUT THE METHOD
METHOD AND DEVICE FOR CLOSING LEAKAGE ARISING IN PLACED PIPING RESPECTIVELY FOR REPAIRING THE FAILURE CARRIED OUT FROM WITHIN AND GRANULAR SEALIN COMPOUND FOR CARRYING OUT THE METHOD