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Welcome you visit DooFlex Fexible Engineering

DooFlex is China leading combination of design and manufacture of products made from Heavy Duty PVC or TPU coated fabric. DooFlex products pass rigorous ISO9001 Quality Management System.  With a strong reputation for quality, DooFlex is considered the first choice supplier by many key industry suppliers, contractors and end-users.

This recognition and high level of trust has been achieved through commitment to service from first enquiry to final delivery. Every order is individually managed, retaining close customer contact throughout and helping to ensure completion "on time and within budget", essential in today's competitive environment.

DooFlex Flexible Engineering is the division of DOOWIN Rubber & Plastic Factory, a privately owned company headquartered in Qingdao, China.


  • >> About DooFlex
    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, special inflatable buoyancy products, flexible bulk liquid storage & transportati...
  • >> Quality Certificate
    The commitment to quality is our top priority. DooFlex aim at a high and constant level of quality. Therefore all production processes and procedures have been carried out in accordance with Quality Assurance System ISO9001:2008. Our water load bags are manufactured and tested c...
  • >> R & D
    All DooFlex underwater air lift bags are made with High Tenacity Polyester Fabric/Nylon coated with highly abrasion resistant PVC/PU polymer compounds. This kind material are resistant to direct contact with Chemicals. All seams shall be constructed using radio frequency welding...