Gold Index: 800
Hejian Yinhai Drill Bits Manufacture Co.,Ltd [China (Mainland)]
Business Type:Manufacturer City: Cangzhou Province/State: Hebei Country/Region: China (Mainland)
Tricone Rock Bits/Tricone Bits for Drilling
Tricone bits from 6 to 17 1/2 inch, both steel milled tooth and Tungsten Carbide Insert Bit with metal seal.
2012-05-07