硬质合金通用柄空心钻头，专用硬质刀片,摩擦力小,分层切削
25/35/50


53
19.05
25/35/50


54
19.05
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55
19.05
25/35/50


56
19.05
25/35/50


57
19.05
25/35/50


58
19.05
25/35/50


59
19.05

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