用阀门的阀杆(5)对准适配器衬套或持论操作机构(3)镗孔。
Align adapter bushing or gear operator (3) bore with valve stem (5).
阀芯与阀座或衬套卡死，阀杆弯曲等。
Valve core and valve seat or bushing deactivation, valve lever curving and so on.
在阀门中，这种材料的最主要用途是，作为蝶阀的阀杆材料，和铸钢阀门的后阀座衬套和阀楔板。
The most common applications in valves are, for stem material in butterfly valves, and backseat bushings and wedges in cast steel valves.
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