The product adopts a non-planar appearance structure, which can alleviate the impact of the composite sheet during the drilling process, effectively reduce the wear of the composite sheet, improve the service life of the drill bit, and is suitable for drilling in complex and variable rock formations......
The product adopts a non-planar appearance structure, which can alleviate the impact of the composite sheet during the drilling process, effectively reduce the wear of the composite sheet, improve the service life of the drill bit, and is suitable for drilling in complex and variable rock formations......
The product adopts a non-planar appearance structure, which can alleviate the impact of the composite sheet during the drilling process, effectively reduce the wear of the composite sheet, improve the service life of the drill bit, and is suitable for drilling in complex and variable rock formations......
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