tapered button bit7 Degree Mining Tapered Rock Drilling Bit
please visit website:www.zhuzhoujinxin.com
1.All DTH button bits are drill bits matched with DTH hammers through splines.
2.Simple structure and not broken easily
3.Hole straightness, high speed and deep hole drilling
4.Good flushing effect to ensure high drilling rate
Видео tapered button bit7 Degree Mining Tapered Rock Drilling Bit канала Yuyu Zhang
1.All DTH button bits are drill bits matched with DTH hammers through splines.
2.Simple structure and not broken easily
3.Hole straightness, high speed and deep hole drilling
4.Good flushing effect to ensure high drilling rate
Видео tapered button bit7 Degree Mining Tapered Rock Drilling Bit канала Yuyu Zhang
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