FIELD: construction.
SUBSTANCE: high-pressure pipe includes inner lining (1), outer layer of coating (6) and reinforcing layer (2, 5) located between inner lining and outer layer of coating. Reinforcing layer has spirally wound strips (2, 5), each of which comprises matrix (4) and fibres (3) embedded in matrix; fibres consist of multiple twisted high-strength threads.
EFFECT: in order to ensure relatively high bending flexibility, the fibre threads represent dressed threads produced by applying threads on the suture during the sizing operation.
16 cl, 2 dwg
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