recessed marking 中文意思是什麼
recessed marking
解釋
球表面的小凹-
Assembly tools for screws and nuts - screwdrivers for cross - recessed head screws - part 2 : general requirements, lengths of blades and marking of hand - operated screwdrivers iso 8764 - 2 : 2004
螺絲和螺母用裝配工具.十字槽頭螺釘用旋具.第2部分:手
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