WUXI hai long airtight technology Co.,Ltd specialised in manufacturing airtight zipper,inflatable dummy targets.As a professional waterproof zipper manufacturer ,our products are widely used in military products,protection suit ,Gym lie fallow fields ect.Excellent quality,reasonable price,goods serveice is our principle, we have enjoyed great popularity both at home and abroad.Our products has applied to military field all the time. We have CR rubber zipper,PVC zipper and TPU zipper.These are all airtight and water-proof zippers.Kinds of the zippers we have open end,closed end, U shape, separate zippers. We have our own engineers,designers,technicians. We pay attention on the developing and quality of our products. Features for the zipper are acid resistant, alkali-resisting,oil proof and corrosion resistant. Product features: 1 Reasonable design, 2 Zipper service life long, the limit can reach more than 300 times, 3 Good air tightness, 4 Could separate light, water and air, dust etc.. 5 It has acid, alkali, oil and corrosion resistance U-shape Airtight Zipper price website:http://www.hlairtight.com/airtight-zipper/u-shape-airtight-zipper/