Ball valve offers more consistent seal
World pumps ; 2009 , 9
2009
Article (Journal)
English
Flexible Wedge Seal for Ball Valve
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Flexible Wedge Seal For Ball Valve
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|Differential Pressure Helps Seal Ball Valve
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|Ground improvement offers consistent subgrade stiffne
IuD Bahn | 2001
|Ground improvement offers consistent subgrade stiffness
British Library Online Contents | 2001