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Products > coring bit > Tianjin Grand Construction Machinery Technology Co., Ltd. | Similar Products

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Core Barrel Bit Bucket Drill Roller Cone Drill Bit Oil Rig Drill Bit: Core Barrel Bit Bucket Drill Roller Cone Drill Bit Oil Rig Drill Bit Core Barrel Bit Description Internal structure: 1. Adopting the steel ball locking sliding bearing and the bearing surface is ...

Tricone Drill Bit Tricone Drilling Steel Tooth Tricone Bit Wholesale Tricone Bit: Tricone Drill Bit Tricone Drilling Steel Tooth Tricone Bit Wholesale Tricone Bit These Grand tungsten carbide insert bits are used to drill soft formation with low compressive strength and high drill ...

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Core Barrel Bit Bucket Drill Roller Cone Drill Bit Oil Rig Drill Bit