This batch of cargo is Core barrel with bullet teeth, the out diameter is 1.5m, ordered by SANY, they will be delivered to SANY overseas construction site. 

This is a new batch cargo, products including conical rock auger, flat rock auger, core barrel with bullet teeth. These are all for a big drilling rig enterprise here.  The auger in the picture waiting for packing is a conical rock auger, drilli...

Two rotary rock drilling buckets, the outer diameter 1000mm, that's the drilling diameter is 1000mm. Barrel length 1200mm, wall thickness 20mm, kelly box 200mm. Core barrel with bullet teeth, outer diameter 900mm,barrel length 1200mm, wall thickness ...

https://www.youtube.com/watch?v=hye4cKWSl30

https://www.youtube.com/watch?v=nrINLzuXWR8