Author 2019-11-08
Drifter rods are made by hollow drill steels; there are two shapes of extension rods, round type and hexagonal type. This hollow hole are usually named flushing hole, used for transmitting water or ai...
Author 2019-11-08
Button bits are our mainly manufacturing products, of which various sizes and styles are available and applicable for drilling different kinds of rock formations. A comprehensive range with 'Button', ...
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