CNS 13421:2017
Micrographics - Diazo and Vesicular Films - Visual Density - Specifications 微縮攝影技術–重氮片及氣泡片的目視密度–密度規格 |
CNS 5699:2017
Roller Bearings for Electric Traction, Separate Thrust Collars 電力牽引器用滾柱軸承NJ+HJ軸承系列用之L形肋環 |
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