FIELD: protection of pipelines against corrosion during assembly and repair. SUBSTANCE: three-layer hose is introduced into pipeline and is pressed to it by blowing out. Center layer is impregnated preliminarily with binder which is hardened after pressing the hose to pipeline. Inner layer is withdrawn by turning it inside out. EFFECT: higher reliability. 5 cl
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Authors
Dates
1997-10-27—Published
1996-05-07—Filed