[机]?阀轴
... valve seat,阀座面 valve shaft,阀轴 valve sizing,阀尺寸计算;阀口径计算 ...
?阀杆
... valve setting: 阀位给定 valve shaft: 阀杆 valve sizing: 阀尺寸计算,阀口径计算 ...
?气门杆
... 旗门杆 gate pole 气门杆 valve shaft; valve stem 汽门杆 valve link; valvestem ...
?铬不锈钢
... High Ni.Cr steel 铬镍钛钢 Valve shaft 铬不锈钢 Cr stainless steel 铬钼钒钢 ...
阻气阀轴
阀轴杆 ; 不锈钢阀门轴杆
干阀井
[机]阀轴,阀杆
valve spindle??/??valve stem
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