High Strength 75mm Three-Wing Arc Angle Drill Bit for Coal Mining
Shenzhen TANK Drilling Technology & Equipment Co., Ltd.High-Quality IADC S323 215.9mmpdc Oil Drill Bit for Limestone Claystone Shale
Shenzhen TANK Drilling Technology & Equipment Co., Ltd.IADC S433 152.4mmpdc Oil Drill Bit for Soft to Medium Hard Formations
Shenzhen TANK Drilling Technology & Equipment Co., Ltd.Durable 152.4mm Three-Wing Concave Drill Bit for Coalfield Collection
Shenzhen TANK Drilling Technology & Equipment Co., Ltd.High Efficiency IADC S423 444.5mmpdc Oil Drill Bit for Shale Sandstone
Shenzhen TANK Drilling Technology & Equipment Co., Ltd.High Cost Performance IADC127 215.9mm PDC Oil Drill Bit for Mudstone Chalk
Shenzhen TANK Drilling Technology & Equipment Co., Ltd.Stable IADC S433 215.9mm PDC Oil Drill Bit for Limestone Anhydrite
Shenzhen TANK Drilling Technology & Equipment Co., Ltd.High Efficiency 250mm Four-Wing Arc Angle Drill Bit for Mining Exploration
Shenzhen TANK Drilling Technology & Equipment Co., Ltd.Customization IADC S323 311.1mmpdc Oil Drill Bit for Limestone Sandstone Shale
Shenzhen TANK Drilling Technology & Equipment Co., Ltd.