| 摘要 |
A length of hose made of a flexible and weather-proof material having high elasticity e.g., a suitable synthetic resin, or plastics or a co-polymer of ethylene vinyl acetate resin, having a plurality of incisions formed in the wall of the hose from inside to outside at proper portion thereof, and comprising a strengthening means such as a longitudinal cross shaped press-back means made of polyethylene or a co-polymer of acrylo nitrile ethylene or ethylene vinyl acetate inserted into the hose; the hose may instead be provided with longitudinal stiffening ribs on the surface thereof; longer lengths of the hose may be formed by joining shorter lengths of the hose by means of adaptors.
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