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DOOWIN provides high-quality, IMCA D-016 and LEEA 051 compliant inflatable solutions for load testing, marine salvage, offshore operations, pipeline laying, and emergency response.
DOOWIN is the most professional manufacturer in the inflatable lifting and load testing industry. Equipped with the most advanced welding machines, our products undergo rigorous testing to ensure the highest safety standards.
All DOOWIN air lifting bags and water weight bags are designed, manufactured, and certified in compliance with IMCA D-016 and LEEA 051 under the control of ISO 9001:2008. Our products are certified by globally recognized bodies including SGS, LR, BV, and ABS.
All water bags pass the highest class drop test with 6:1 safety factor compliance with LEEA 051.
Certified by SGS, LR, BV, and ABS to ensure international quality standards.
We pay attention to every detail — from airbag bodies to lifting belts, shackles, master links, and accessories — to deliver international-class quality.
Compliant with IMCA D-016, LEEA 051, and ISO 9001:2008 standards. Trusted by global clients.
Equipped with state-of-the-art welding and fabrication technology for precision and durability.
Serving marine, offshore, oil & gas, and emergency sectors worldwide with rental and repair services.
DOOWIN offers a wide range of inflatable solutions for load testing, marine salvage, pipeline laying, water storage, and offshore operations.
Used for proof load testing of cranes, hoists, offshore rigs, lifting equipment, and platforms.
Professionally designed for marine salvage and underwater lifting operations.
Ideal for confined spaces where traditional weights cannot be used.
Designed for lifeboat and davit load testing with air and relief valves.
Inflatable floats for pipeline laying and subsea buoyancy control.
Bladder tanks for potable water, firefighting, agriculture, and rainwater storage.
Heavy-duty inflatable bags for ship and submersible recovery.
Used for pipeline maintenance, testing, and isolation in oil & gas and water systems.
From project consulting to repair, DOOWIN supports your operations at every stage.
Expert advice on load testing, marine salvage, and buoyancy solutions tailored to your project.
Flexible rental options for water weight bags, lift bags, and testing equipment.
Professional load testing services for cranes, davits, and lifting systems.
Fast and reliable repair for inflatable bags, tanks, and buoyancy units.
DOOWIN has successfully completed major load testing and marine operations worldwide.
March 22, 2023
December 14, 2021
September 30, 2021
Countries Served
Projects Completed
Safety Factor
Years Experience
Yes, all DOOWIN products are manufactured and certified in compliance with IMCA D-016 and LEEA 051 under ISO 9001:2008. They are certified by SGS, LR, BV, and ABS.
Yes, we offer rental services for water weight bags, lift bags, and load testing equipment. Contact us for details.
Yes, we provide customized sizes and shapes for all our inflatable products including water bags, lift bags, and buoyancy units.
Our products are made from high-strength PVC and TPU-coated fabrics, ensuring durability, water/oil resistance, and long service life.
For inquiries, quotes, or technical support, contact DOOWIN today.
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