High Density Polyethylene Tube And The External Corrugated And Internally Smooth With A Fitting Or Threading System In 6 Meters And The Minimum Useful Length Of 5 90 Meters. The Tube Shall Meet The Required By The Abnt Nbr Iso 21138 2016 Standard And The Rigidity Class According To Iso 9969 4000 Pa Sn 4. Nominal Diameter Dn Di. Internal Diameter Minimum Of 400Mm., High Density Polyethylene Tube Being The External Corrugated And Internally Smooth With A 6 -Meter Bars Fitting Or Threading System Being The Minimum Use Of 5 90. The Tube Must Meet The Required By Abnt Nbr Iso 21138 2016 And Dnit 094 2014 The Rigidity Class According To Iso 9969 4000 Pa Sn 4. Internal Minimum 600Mm., High Density Polyethylene Tube Being The External Corrugated And Internally Smooth With A 6 Meter Bars Fitting Or Threading System Being The Minimum Use Of 5 90. The Tube Should Meet The Required By Abnt Nbr Iso 21138 2016 And Dnit Standard 094 2014 The Rigidity Class According To Iso 9969 4000 Pa Sn 4. 1000Mm.
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