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Die üblicherweise verwendeten Holzbohrer haben einen äußeren Durchmesser von 6 mm-40 m, das häufig verwendete Material auf dem Markt ist Nr. 45 Stahl, dessen Härte HRC40-48 ist. Wenn eine bessere Marke Nr. 65 Stahl verwendet, kann die Härte von Dreipunkt-Holzbearbeitungsbohrer HRC45-54 sein, und der Schnitteffekt ist besser.
2022/06/13
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.