DOOWIN attended the Sea Asia 2017 in Singapore. We would like to thank all our customers, supporting partners, visitors who are interesting in our water weight bags, underwater air lifting bags, and pipeline buoyancy bags.

We well propagandize the DOOWIN brand by Sea Asia. More and more users and contractors know DOOWIN. Our water bags and air lifting quality is highly regarded by customers too. Many customers express their interesting to use DOOWIN products in future.

DOOWIN, as the Chinese leading professional manufacturer, committed to provide the highest quality water weight bags and air lifting bags. Professional cast quality. Our products are manufactured with the world level raw material. The water weight bags are type certificated by drop test with 6:1 safety factor. All products are certificated by third party, BV, ABS, LR.

We sincerely look forward to the cooperation with your company.