hot line: 86-510-80628100
stabilizer with tungsten carbide surface
stabilizer with weld-on hardfacing
roller cutter
2.4m reamer and cutter
roller cutter and saddle
17" double blade cutter
four-wing stabilizer
17" multiple blade cutter
1.2m reamer
cutter ring
cutter shell
5.5 reamer
raise boring 6m reamer on peru site
rotated umbrella gear