| 摘要 |
A process for producing a synthetic resin hose reinforced with a steel wire layer comprises (a) welding together by coating the layer on the outside surface of the inner duct extruded from the extruding outlet of the hollow cylinder, (b) passing then through the moving outer extruding duct, and (c) incorporating the inner duct, the steel wire layer with the outer duct by extruding the melted synthetic resin compsn. from the dice of the outer duct.
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