FIELD: production of multilayer pipes. SUBSTANCE: method includes heating of thermoplastic shell, its deformation and insertion into metal pipe or pipeline of internal protective shell with subsequent restoration of its sizes. In so doing, thermoplastic shell is heated during its insertion into pipe in local areas along shell. When shell is cooled inside pipe, thickened walls of shell on areas of local heating recover its initial thickness. EFFECT: higher efficiency. 2 dwg
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