Min. Order Reference FOB Price
1 Set US$500.00-6,000.00 / Set
Product Description
Symmetric Casing Drilling System Pilot Bit Ring Bit for Geothermal Well Drilling Product specifications: Concentric/Symmetric Casing overburden Drilling System with Ring Bit Casing Tube OD(mm) Casing Tube ID(mm) Reamed Dia(mm) Casing Shoe ID(mm) Polit bit Dia(mm) Hammer Type ...