Sub

  • category:Drill Collar and Drill Stem Accessories

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  • Release date:2018/04/23
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Detailed


Sub


Size :Sub with fishing nipple / Sub with clamp/ saver sub/bit sub/ Lifting sub/circulating sub/float sub

length:8inch   /   36inch   /   48inch

All kinds of subs apply the shaft furnace vacuum heat treatment; to ensure the yield strength at least of 120000PSI and hardness of full thickness up to 285-341HB.



Related tags:DrillCollarandDrillStemAccessories,Sub

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