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  • Users: Lupino
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  1. Lupino

    Galvanic Corrossion

    Hello All , I have received an NCR from one of our bigest end-users . we prodcued the valves 8" ball valves in S.S 316, the system is Sour but the the Support legs for the valve is zinc plate carbon steel . they claim that there is the possibility of galvanic corrossion on the site and they...
  2. Lupino

    Material Certificates

    Hello , we are valve manufacturer , I received an NCr from or End user which claims that the Material Certificates (3.1 )are not under the NAME OF OUR Factory. the certs are under the name of our supplier. we provided them every evidences to show that we purchased the material through their...
  3. Lupino

    QC Engineering Challenges

    Hi , I would like to know one challenging project that a QC Engineer in Valve production process have and a solution for that. Thanks

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