DOOWIN provide the below main products to service the load testing, underwater diving, marine salvage, offshore pipeline, water storage, fire fighting, marine and oil industries.
Underwater Lift Bags
Professionally designed marine salvage bags Manufactured Comply with IMCA D016 Air Lifting Capacity: 50kg ~ 50ton. Customized size and shape are available.
Water Weight Bags
Used for the proof load testing for crane, hoist, offshore rig, lifting equipment, platform. Standard capacity: 650kg, 13000kg. Customized size and shape are available.
Pipeline Buoyancy Units
Various pipeline laying floats. Easier to transport and operation Standard buoyancy capacity: 250kg~50ton Customized size and shapes are available.
Lifeboat Test Water Bags
Professinal designed water bags with air valve, relief valves and hands Standard Capacity: 100kg ~ 1ton Customised size availiable
Portable Water Tanks
Various water bladder tanks used for potable water, grey water, rainwater, agricultural irrigation. Made of PVC and TPU coating fabric for water and oil. Customized size and shapes are available.
Featured Inflatable Bags
Based on our experienced production technology for the inflatable PVC flexible products. We also make the fenders and buoys, plugs, ship launching airbags, and flexitanks to help the customer more.
Who We Are?
DOOWIN is Chinese leading professional manufacturer underwater lift bags and water weights bags. We also produce pipeline buoyancy units, water bladder tanks, and other special inflatable flexitank products. We manufacture and test the air lift bags and water weight bags in complying with international standard IMCA D016 and LEEA 051.