ISO 9001:2000
75mm 94mm 113mm 133mm 153mm 171mm 200mm 250mm 275
PDC Double Teethes Core Drilling Bit
Drilling Tool
Petroleum Gas Geological Exploration Drilling Wate
0905/1004/1005 PDC Cutter
High Wear Resistance/High Strength/Impact Resistan
Fast Drilling & Good Wear-Res
3" 4" 5" 6" 6 1/2" 7" 8" 8 1/2" 9" 10" 12" 14" etc
Wooden Crate
112mm 132mm 151mm