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原帖由 <i>zhangcad</i> 于 2006-11-6 09:50 发表<br /> ) m% I; C' U% u) w: ^3 O) B: A1 E: KM27:螺纹公称直径<br /> + y! c/ E9 H2 ^P2:螺纹螺距<br />5 N1 e) \( f7 g+ T 6h:螺纹尺寸公差等级<br /> % N y+ C) x4 J6 pLH:螺纹旋向(LH:左旋 RH:右旋)
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