Core barrel-Double shell

Application：Backfill,strength up to medium rock, gravel, boudler.

Features：

Shell height: as customers request, the space between the double shell based on actually needs.

Teeth: B47K22 or B40K12 or upon request.

Wear protection: Hard facing-Wear strip-Betek Stungstuds upon request

Structure: Inner shell drilling first, then the outer shell cutting ring with rock bits drilling to release rock pressure.

Parameters

Workshop & Producing line

Welding details

Quality control

Package & Delivery

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