Extruded leak-proof, leak-proof, leak-proof or air-conditioning hose for mounting in hollow spaces of automotive bodies

摘要

An extruded buckling-resistant longitudinally insertable drain or venting hose of PVC or a similar thermoplastic material which can be mounted in inaccessible hollows of a conveyance, especially a motor vehicle body, has longitudinally-extending radial ribs coextruded with the PVC body and composed preferably of chlorinated polyethylene. As a result, the hose has improved sound-damping properties and can be more readily inserted into place.