character: 1. tenacity: after processing the polyester terylene by polymerization and intwining terylene in the mesosphere of the hose, the products are produced. so the cracking of products is very high. 2. burliness: after affixing the pvc and terylene by the special engineering technology, so there isn’t the phenomena of abruption and stratification. 3. permanence: the stuff which is choosed strictly and is processed with precise filter net under the consummate quality control system is made into products, wherefore the life-span is very lasting. 4. pliability: the products are made by polymerizing terylene and mixing pvc for the best proportion, so the products are not only smooth but also soft. authentication: our company have been authorized by iso 9001:2000, on nov. 22th, 2005. iso 9001:2000 registered date: 2005.11.22 iso 9001:2000 registered number: 4809/0 qulity china chemical industry standard seoul’s own back-check test item capability test condition test result test of inner pressure bursting pressure(mpa) no leaking water, inflating and bursting 18.9mpa below no bursting 21.0mpa coefficient of curve distortion ≥0.8 distortioncoefficient≥0.8 when curve radii is 145.44m 0.98 stench intensity outer tier ≥10.0mpa 15.2 endothecium ≥7.0 mpa 29.1 elongation modulus outer tier ≥250% 300% endothecium ≥200% 305% agglutinate intensity ≥1.5kn/m speed of peeling 25.0±1 mm/min 2.6 watchful proceedings: 1. the pressure is 60kgf/c㎡ below and the temperature is 70℃ below. 2. after using the products, they should be rolled. the place of safekeeping should be shady. 3. must not knock the products by hammer when connecting hose, avoiding agglutinate disrepair