Njengoba kuboniswe esithombeni esingezansi kwesokudla, i-dome PDC kanye ne-carbide inserts zifakwe nge-percussion bit efanayo. Ngemva kokuhlola, i-carbide inserts iyaguga.
Amatshe ayisishiyagalolunyeIzicelo Zokumbiwa/Ubunjiniyela be-Dome PDC kanye ne-Conical PDC
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Xhumana nathi
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Igumbi 101-201, Isakhiwo 1, Isizinda Sokusungula Izinto Ezintsha Semboni Yedijithali saseHuazhong, Isifunda saseHuarong, Idolobha lase-Ezhou, Isifundazwe saseHubei, eShayina
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