This product uses polyester filament as warp and weft yarn raw material to weave strip blank, make water strip can bear higher working pressure, then stick polyurethane layer of certain thickness on its inner wall lining, in order to improve the sealing performance of water strip, and inner wall is smooth, the utility model has the advantages of small water resistance, high pressure resistance, high temperature resistance, oil resistance, corrosion resistance, bending resistance, light weight, etc.