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Reinforced three-layer tube and a method for producing reinforced three-layer tube
Reinforced three-layer tube and a method for producing reinforced three-layer tube
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机译：加强型三层管及制造加强型三层管的方法
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摘要
reinforced pipe band has an internal first layer pipes (1) shaped with the plastic material and the second layer (2) and a third layer (3) in the form of a generally rectangular hollow profile wall, which side wall (4) are connected.between the first layer (1) and a second layer (2) is in the form of steel reinforcement profile (5), whereby the profile (5) has a cross section curve. profile, a second layer (2) and a third layer (3) is filled with the waste material.process for the production of enhanced tubes tru00f3jwarstwowej is that a pre formed first layer pipes (1) keeps on strengthening of steel profile (5) moulded before the imposition by transverse bowing pu0142askownika and then talking essentially straight ku0105tny profile, a second layer (2) and a third layer (3).profile, a second layer (2) and a third layer (3) tubes, filled with waste material.
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