Roller Bits

https://www.jztgpiling.com/DRILL-BITS/Roller-Bits.html

Core Barrel with Roller Bit

https://www.jztgpiling.com/CORE-BARREL/Core-Barrel-with-Roller-Bit.html

Core Barrel with Roller Bit

Type: Core Barrel with Roller Bit Model Diameter1.2M Rotary rig SWDM160 Formation: Hard rock coring, other complex hard strata Description Large-scale construction projects project, rotary rig piling tools used: JZTG core barrel with Ro...

https://www.jztgpiling.com/Core-Barrel-with-Roller-Bits/Core-Barrel-with-Roller-Bit.html

JZTG Factory Delivery for Core Barrel with Roller Bits

https://www.youtube.com/watch?v=ANhTPN-Z87c

https://www.jztgpiling.com/Products-Show/JZTG-Factory-Delivery-for-Core-Barrel-with-Roller-Bits.html