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About the pitch of rock drilling tools
When humanity entered the 18th century, the First Industrial Revolution brought about not just a technological transformation but also a profound social change, ushering in an era where machines began to replace manual labor. Since then, the rock drilling and excavation industry has rapidly advanced towards faster, more durable, and efficient methods. During this process, various thread forms for
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Zhuzhou Zhongge Cemented Carbide Co., Ltd.
AddNo. 1099, the Pearl River North Road, Tianyuan District, Zhuzhou, Hunan
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