[Patentin Zane] Matattarar Rawar (94 Karkace Mai Zurfi)
Yanayin aikace-aikacen da Dacewar PDC Drill Bits
Drilling Technology Li Xiaohuan
Fa'idodi da Zaɓin PDC Drill Bits
Drilling Technology Li Xiaohuan
Kwatancen Kwatankwacin Nazari na Drill Bits
Drilling Technology Li Xiaohuan
Tambayoyi da Matsaloli Masu Yawan Faruwa tare da PDC Drill Bits
Dabarar Haƙa Ramin Ma'adinai Mai Lu'u-lu'u Don Sauƙin Ci gaba
Li Xiaohuan Li Zhongyong Patents and innovation Zou Chao
Ci gaban Fasaha da Yanayin Nan Gaba a PDC Bits na Hakowa
Drilling Technology Li Xiaohuan
Sabbin Fasahohi da Yanayin Nan Gaba a PDC Drill Bits
Drilling Technology Li Xiaohuan
La'akari da Ayyuka da Muhalli
PDC Burtsatse: Aikace-aikace da Nazarin Lokuta
Drilling Technology Li Zhongyong