FIELD: technological processes.
SUBSTANCE: invention is related to the field of pipes production. Pipe comprises the following components - basic body (8) from cast iron, which limits external surface (10) of basic body and internal surface (12) of basic body, and internal coat (14) applied on internal surface (12) of basic body. Internal coat (14) comprises thermoplastic material based on polyolefines or polyamide. Invention is also related to method for manufacturing of pipe and tool for processing of internal surface.
EFFECT: lower cost of pipes production.
12 cl, 5 dwg
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