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Hejian Longyue Drill Bit Manufacturer Co.,Ltd

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8 1/2'' iadc 637 tricone rock bit for water well d
8 1/2'' iadc 637 tricone rock bit for water well d
Specification: 8 1/2''
Detail: ¡ñProduction Specification 1.Bit Size:8 1/2'' 2.IADC Code:637 3.API Pin Connection:4 1/2'' API Reg ¡ñOperating Parameters 4.WOB(KN/mm):0.5-1.2 5.RPM(R/MIN):80-40 6.Applications:hard formation with high compressive stre...
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