About Us

Your safety is our mission!

who we are?

Doowin Marine is professional manufacturer of ship launching airbags, floating Yokohama type pneumatic rubber fenders, foam filled fenders, inflatable pipe plugs, and offshore foam buoys.

Doowin Marine  inflatable rubber marine airbags are manufactured comply with ISO 14409:2011 or CB/T 3795. Rubber marine airbags, known as ship launching airbags or ship launching balloons, can be used for ship launching or landing, heavy lifting, and marine salvage.

Our floating marine fenders include Yokohama type pneumatic rubber fenders and foam filled fenders. Yokohama type pneumatic rubber fenders are produced and inspected complying with ISO 17357. Inflatable pipe plugs are widely applicable to all kinds of municipal pipes blocking as stoppers. We also produce the various offshore foam buoys, mooring buoys and chain support buoys used for surface to subsea 7000m. 

Our engineers and consultants have been in fabrication and use these products for more than 30 years. Doowin Marine products passed rigorous ISO 9001:2008 Quality Management System, approved by the third party SGS, BV, CCS, ABS, LR, BV.

We are proud to provide the highest quality products, together with expert service and timely customer support. Let’s help you successfully complete your project – on budget and on time.

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Please note: Doowin Marine is the brand of Qingdao Doowin Marine Engineering Co.,Ltd, who is professional manufacturer of rubber and plastic industry.

Quality Assurance

We Believe In Quality is Life

Quality is morality, Quality is integrity, Quality is respect to clients.

Honesty, Hard Work, Love for Others, Responsibility
Philosophies — “People Oriented, Innovation”

ISO 9001:2008

From the raw material to the final inspection, all production process is under control of ISO 9001:2008.

Third Party Certificate

Third party, BV, ABS, CCS, LR inspect and approve our products following the international industry standard. 

International Standard

We produce the pneumatic fenders and ship launching airbags comply with ISO 17357 and ISO 14409.

Hydraulic Blasting Test

To get the qualified working pressure, we tested the prototype rubber airbags of different diameter. 


The Commitment to Quality is Our Top Priority

Why Doowin Marine

Our experienced engineers and workers design and manufactured qualified airbags, fenders, plugs, and buoys.
We create outstanding products always. We use the first-class rubber raw material and synthetic-tire-cord layers.
The advanced production technology and management system can help to control the cost well, to offer the client the best price.

Qualified Raw Material

High quality rubber & synthetic-tire-cord

Advanced Production Technology

Advanced integral winding technology

International Standard

ISO 17357:2002 & ISO 14409

Long Warranty withou Worries

We provide 24 months warranty

Hydraulic Burst Test

Passed hydraulic burst test

Long Lifespan

The designed lifespan is 6~8 years

Meet Our Clients

we work for them

We work for many shipyards, ports, and offshore companies all over the world. 

Do you want Qualified Products?

Please contact us now!
Telephone: +86-532-67730629
Mobile:  +86-185 5486 9267 (WhatsApp)
Email:  sales@doowinmarine.com

Ask For A Quick Quote

It’s easy: all we need is your eternal love. But we’ll settle for your email.

Email: sales@doowinmarine.com
Mobile: +86-185 5486 9267 (WhatsaApp)
Telephone: +86-532-67730629
We will contact you within 1 working day.