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◆Type：DFB-Ⅰ/ DFB-II

◆Storage temperature：-30℃～+65℃

◆Specification：M、L、XL

◆Waterpro of perbance：The water-permeability amount is less than 200g  after the wearer has floated on water for  one hour.

◆Thermo-insulation perbance：After  the wearer soaks in stationary water of  0-2℃ for 6 hours ,the drop of the body-temperature is less than 2℃.

◆Floating force perbance：The wearer  can turn over within 5S,so that his face is  toward up and the nose and mouth portion  is 120mm above the water level ,after the  wearer soaks in water for 24hours,the  floating force loss of the suit is less than  5%.