金刚石地质钻头,带冷却和切屑清除功能
Li Xiaohuan Li Zhongyong Patents and innovation
具有防滑功能的金刚石地质钻头
Li Xiaohuan Li Zhongyong Patents and innovation
金刚石钻头生产:先进的电镀设备
Li Xiaohuan Li Zhongyong Patents and innovation Zou Chao
金刚石地质钻头尖端磨削装置
Li Xiaohuan Li Zhongyong Patents and innovation Zou Chao
金刚石钻头:新型高效制造方法
Li Xiaohuan Li Zhongyong Patents and innovation Zou Chao
高速钻头
Li Xiaohuan Li Zhongyong Patents and innovation Zou Chao
用于水注入通道的金刚石钻头研磨装置
Li Xiaohuan Li Zhongyong Patents and innovation Zou Chao
高强度PDC钻头:制造方法
Li Xiaohuan Li Zhongyong Patents and innovation Zou Chao
耐腐蚀、耐磨地质钻头及制造方法
Li Xiaohuan Li Zhongyong Patents and innovation Zou Chao
具有抗弯凹凸唇的金刚石复合钻头
Li Xiaohuan Li Zhongyong Patents and innovation