DOOWIN is a unique Chinese professional manufacturer of underwater air lifting bags and buoyancy bags.
DOOWIN heavy duty air inflated underwater air lift bag is used worldwide for raising sunken objects, vessel salvage, marine structure stabilization, underwater equipment transport, pipeline laying work, and standby emergency buoyancy.
All DOOWIN underwater air lifting bags are manufactured and tested comply with IMCA D 016 Rev.3 "Underwater Air Lift Bag". That guidance addresses the initial and periodic examination, testing, certification and maintenance of underwater type bags (cylindrical totally enclosed, closed and open parachute bag) used to lift submerged objects.
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