Gold Member Since 2013
Audited Supplier

Qingdao Doowin Rubber And Plastic Co., Ltd.

Underwater Air Lift Bags, Water Weight Bags, Proof Load Testing Water Bags manufacturer / supplier in China, offering Underwater Salvage Floating Air Bag/Underwater Air Lifting Bag, Crane Load Test Water Weight Bags / Filled Weight Bags for Sale, Crane Proof Load Test Water Bag and so on.

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Crane Load Test Water Weight Bags Drop Test
Crane load testing water weight bags are dynamic drop tested with Safety Factor of 6:1. DO...
Load Test Water Bags used for Proof Load Testing Weight Projects
This video record the whole operation proof load testing process using several load test w...

Our Factory

We have professional engineering team. Our engineers are...
We are professional manufacturer of flexible product, includ...

Our Service

DOOWIN made and stock many size water load bags and underwat...
DOOWIN commit to produce highest quality load test water bag...