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Company Introduction

Welcome you visit our new website www.doowincn.com

DooFlex is a China leading combination of design and manufacture of products made from Heavy Duty PVC or TPU coated fabric.

DooFlex products include underwater air lifting bags, salvage pontoon, inflatable buoyancy bags,  proof load testing water weight bags, lifeboat test water bags, flexible bulk liquid storage & transportation PVC tankers (Container Flexitank), marker buoys & inflatable fenders. With a strong reputation for quality, DooFlex is considered the first choice supplier by many key industry suppliers, contractors and end-users.

DooFlex Heavy Duty Air Inflated underwater air lift bags products are used world-wide for raising sunken objects, vessel salvage, marine structure stabilization, underwater equipment transport, pipeline and equipment towing, and standby emergency buoyancy. These products are manufactured comply with IMCA D016, Rev3 - June 2007 Guidelines. 

With a wide range, good quality, reasonable prices and stylish designs, our products are extensively used for underwater salvage, and the proof load testing of cranes, davits, lifeboats, hoist, ramps & lifts, passenger gangways, platforms and bridges. With a good reputation of quality, DOOWIN is considered as the first choice of many key industry suppliers, contractors and end-users.

DooFlex's engineers and consultants have been in fabrication and use these serial products for more than 30 years. DooFlex has the clients in the Diving, Marine Rescue and Salvage, Energy and Oil, Offshore & Shipping, and other industries all over the world. DooFlex's products passed rigorous ISO9001 Quality Management System, approved by the third party SGS, BV, CCS certificate.

DOOWIN Rubber & Plastic

DooFlex Flexible Engineering is a division of DOOWIN Rubber & Plastic, a privately owned company located in Qingdao, China. The company has been providing solution to the industry sectors chosen.

DOOWIN’s great strenght comes from its vast array of proudcts and service in  Rubber and Plastic Industry. Together, they serve a range of industries around the world with the highest qulity products and service.

water weight bags, underwater air lifting bags, air lift bags, crane test water weight bags, water bag, open bottom air lift bags, parachute lifting bags