Varel International Drill Bits for oil & gas and mining & industrial applications PDC Drill Bits Roller Cone Drill Bits Technical Services
公司介绍:
varel also produces tungsten carbide insert (tci) roller cone bits, steel tooth, open bearing roller cone bits and related technical services for the mining and industrial sectors.
关键字搜索:
steel tooth bits, blasthole bits, reverse circulation bits, pilot hole bits, oil, gas, mining, industrial, varel international