Availability: | |
---|---|
Quantity: | |
Dia 800~2800
BAORUI
Item:Double shell core barrel
Feacture:Drilling and coring first by the inner ring and reaming by the outer ring.High efficiency for large , deep and toughest pile.
Application strata:Gravel, boulder,and medium weathered rock.
Type:Bullet teeth or roller bit
Customized service: customized like φ850mm, φ1120mm.
Kelly box:200mm or 250mm