| 摘要 |
FIELD: construction. ^ SUBSTANCE: hose has inner layer made of a flexible material, outer layer made of nonwoven material and polymeric reactive or thermoplastic glue. The inner layer is a strengthening one and made of two corrosion protecting metal belts rigidly secured to each other over periphery and is additionally provided with a branch pipe. The polymeric glue is interposed between the inner and outer layers. ^ EFFECT: enhanced reliability. ^ 10 cl, 5 dwg |
