Select a new position for easy reading and, with the sleeve and handwheel held together in the closed position (0.0), push them back over the bonnet hex and valve stem.

 
  • 选择一个易于观察的新位置,将套筒和手轮一起保持在关闭位置(0.;0),将其推回到阀盖六角和阀杆上。
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