Qingdao Doowin Rubber and Plastic Co., Ltd. is a leading manufacturer of underwater air lifting bags, proof load testing water weight bags, lifeboat & Davit test water bags, salvage tubes & Pontoons,
pipeline buoyancy bags, pipe plugs, ship launching marine rubber airbags, pneumatic rubber fenders, offshore buoys, foam-filled fenders, liquid storage pillow tanks, and other products made of heavy-duty PVC or TPU coating fabric. We also provide crane load testing service, and rental airlift bags and water-filled weight bags. DOOWIN underwater air lift bags include parachute type lifting bags and totally enclosed type lifting bags. The parachute type lifting bags have open bottom type air li
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| Qingdao Doowin Rubber And Plastic |
| Qingdao Doowin Rubber and Plastic Co., Ltd. is a leading manufacturer of underwater air lifting bags, proof load testing water weight bags, lifeboat & Davit test water bags, salvage tubes & Pontoons |
| Qingdao Doowin Rubber and Plastic Co., Ltd. is a leading manufacturer of underwater air lifting bags, proof load testing water weight bags, lifeboat & Davit test water bags, salvage tubes & Pontoons, pipeline buoyancy bags, pipe plugs, ship launching marine rubber airbags, pneumatic rubber fenders, offshore buoys, foam-filled fenders, liquid storage pillow tanks, and other products made of heavy-duty PVC or TPU coating fabric. We also provide crane load testing service, and rental airlift bags and water-filled weight bags. DOOWIN underwater air lift bags include parachute type lifting bags and totally enclosed type lifting bags. The parachute type lifting bags have open bottom type air lift bags and enclosed type air lift bags. The sealed type lifting bags include cylindrical shape enclosed air lift bags, pillow type air lift bags, elongated air lift bags, individual buoyancy bags, vertical buoyancy bags, and twin inflatable buoyancy units. These air lifting bags can be used for the pipeline laying work too. The buoyancy capacity of our air lifting bags is from 50kg to 50ton. DOOWIN load test water bags include crane test water weight bags, low headroom water weight bags, platform test water weight bags, lifeboat test water weight bags, gangway test water bags. The crane load test water weight bag′ s capacity is from 1ton to 100ton. The lifeboat test weight bags have 100kg, 375kg, 400kg, 600kg. All load test weight bags are supplied with their accessories, ready for use. The wireless load cell will be supplied upon request. DOOWIN collapsible storage pillow tanks include potable drinking water pillow tanks, bulk storage pillow tanks, rainwater pillow tanks, fuel bladder tanks, liquid transport bladder tanks, firefighting water tanks, and other special design flexible tank bladders for bulk water, food, chemical, and chemical. Flexitank is one kind of soft, high-strength, light-weight single-use large bladders with valves. Flexitank is designed to fit inside a general-purpose freight standard 20 foot ISO container. Flexitanks are used for the bulk transport of non-hazardous liquids that are not classified or regulated as dangerous goods. |
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