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hard rock roller tricone drill bit

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Tri Cone Hard Rock Roller Tricone Drill Bit 8 1/2" รหัส IADC 537 617 437 สําหรับหินแกรนิต

8 1/2" IADC Code 537 617 437 Tri-Cone Hard Rock Roller Tricone Drill Bit For Granite Non-sealed Roller Air Bearing Mining Roller Cone Bits This series bits are non-sealed Roller Bearing bits that are cooled and cleaned by air with fast drilling speed and good strength which are used for the development of open-pit coal mines, iron mines, and non-ferrous metal mines. The thrust bearing is made of materials with high wear resistance, high hardness, and high temperature

537 รหัส IADC Tricone Roller Rock Bit 6 12 14 5 12 Tricone Drill Bit

Non-sealed Roller Air Bearing Mining Roller Cone Bits Tricone Roller Rock Bit 6 12 14 5 12 Tricone Drill Bit This series bits are non-sealed Roller Bearing bits that are cooled and cleaned by air with fast drilling speed and good strength which are used for the development of open-pit coal mines, iron mines, and non-ferrous metal mines. The thrust bearing is made of materials with high wear resistance, high hardness, and high temperature resistance to improve its load-bearing

98 มิลลิเมตร สามโคนหินม้วนเจาะ Bit สําหรับหลอดน้ํามันและการทําเหมืองแร่

Tci Tricone Three Cone Rock Roller Drill Bit For Oil Rig And Mining API oil rig drilling rock bits 60mm,65mm,76mm,93mm,95mm,98mm(3 7/8”),101.6mm,114mm,118mm,120mm,127mm(5”) 130.1mm(5 1/8”),133.3mm(5 1/4”),139.7mm(5 1/2”),142.8mm(5 5/8”),149.2mm(5 7/8”) 152.4mm(6”),155.5mm(6 1/8”),158.7mm(6 1/4”),161.9mm(6 3/8”),165.1mm(6 1/2”) 190.5mm(7 1/2”),193.6mm(7 5/8”),200.0mm(7 7/8”) 212.7mm(8 3/8”),215.9mm(8 1/2”),222.2mm8 3/4”) 241.3(9 1/2”),244.4(9 5/8”),250.8(9 7/8”) 269.8(10 5/8”)