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    Quality Assurance

    Manufacturing Process

    Seamless pipes & tubes (Mannesmann process)

    Seamless pipes & tubes (Mannesmann process).png


    Seamless pipe pipes & tubes (hot extrusion ? hot hollow forged)

    Seamless pipe pipes & tubes (hot extrusion ? hot hollow forged).png


    Electric resistance-welded pipes & tubes

    Electric resistance-welded pipes & tubes.png


    Hot electric resistance-welded pipes & tubes

    Hot electric resistance-welded pipes & tubes.png


    Arc-welded pipes & tubes (SAWL pipe (by UOE process), SAWL pipe (by Bending roll process), SAWH pipe (by Spiral process))

    Arc-welded pipes & tubes (SAWL pipe (by UOE process), SAWL pipe (by Bending roll process), SAWH pipe (by Spiral process)).png



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