... airbag Marine Salvage airbag is the best choice for 100-2000 tons buoyancy need. Its good ... than 200 tons heavy under the water. For stranded vessel salvage this heavy lift function is ... placed under the barge, Pic3. Creating a ramp/launch-way for refloating the barge, Pic4.With pull of ... T/M3.Application: Ship launching marine airbags are used for ship launching, ship landing, ship lifting, loading, ...