China National Standards

China Longitudinal electric resistance Industry Standards English PDF List

  •  China "Longitudinal electric resistance" Industry Standards English PDF List:
    • Standard  Code Standard Title Standard Class Order
    SY/T 6531-2002 Longitudinal electric resistance welded steel pipes for pump barrel
    油井泵体用直缝电阻焊钢管    		 China Oil & Gas Industry Standards
    Longitudinal electric resistance
    English PDF

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