BOHAI SEA ， TUG“HAIYANGSHIYOU677" TOWING “KAIXUAN1HAO” PLATFORM FROM BZ25-1WHPA（38°15′50″N，119°07′15″E） TO PL19-3WHPV（38°22′36″N，120°06′36″E）.FROM 210800 UTC JUN.TO 281600 UTC JUN. SPEED 4 KNOTS.LENGTH OF TOWING 520 METERS. CAUTION REQUESTED.
