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② Forage direct. Les trous peuvent également être forés directement à l'aide de forets en verre spécialisés avec différents diamètres, mais il est important de les refroidir avec de l'eau pendant le processus de forage.
Si vous voulez en savoir plus sur nos produits, veuillez visiter notre site Web https://www.china-drill-bit.com . J'espère coopérer avec vous.
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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.