fine surface finish
... 高级表面光洁度 fine surface finish 表面光洁度仪 profilometer 表面光洁度等级 surfacerating ...
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阀杆和填料腔壁。精确的圆度和平直度,高级8-16 RMS或镜面表面光洁度。
Stem and packing chamber walls. Close roundness, straightness and superior 8–16 RMS or burnished surface finish.
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