GD121/21 SOUTH CHINA SEA SUBMARINE CABLE REPAIRING WORK CARRY OUT BY C/S“CABLE RETRIEVER” IN 500M BOTH SIDES FROM THE LINE JOINING 21-55.65N 117-33.17E，21-55.16N 117-33.11E，21-54.96N 117-33.08E，21-54.33N 117-33.01E，21-53.88N 117-32.96E AND 21-53.36N 117-32.89E FROM 11 JUN. TO 10 JUL. SIGNAL LIGHTS AND SHAPES WILL BE EXHIBITED WIDE BERTH REQUESTED GUANGDONG MSACHINA