steel tooth bit

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steel tooth bit
Posting date : Aug 22, 2011
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HS-CODE
72-
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Detailed Description
a complete line from 3 7/8’’ (98.4mm)~26’’(660.4mm); IADC codes in all sizes and in stocks; used for oil/water well drilling,mining,etc. 1.Suitable for soft formation with low compressive strength and high drillability (clay,loose sand,soft mud stone,etc.) 2.Hardfaced on surface of head bearing to increase the wear resistance. 3.Using pressure compensation system. 4.New type of grease is used which can resist high temperature.

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