<p class="MsoNormal"> <b><span><span class="msoIns">Development</span>o<span class="msoIns">f High Pressure Large Diameter Bidirectional Seal Program-</span>c<span class="msoIns">ontrolled Rising Stem Ball Valve</span></span></b>

Developmentof High Pressure Large Diameter Bidirectional Seal Program-controlled Rising Stem Ball Valve

Liang Lianjin

Petrochemical Design . 2025, (2): 15 -21 .