Monolithic Block Insulating Joint
drill collarDrillstem elements conform to SY/T5144,SY/T5146 and API 7and API7-1standard,and can be manufactured according to the requiremens of customers
Rotary hose-API 7K1. Purpose: suitable for rotary hose for flexible connection between the top of the drilling riser and the vertically systems, and for the adjustment
Integral heavy weight drill pipe-API-7The size of integral HWDP ranged from 2 7/8" to 6 5/8"
Spiral drill collarDrill stem elements confirm to SY/T5144,SY/T5146 and API 7and API 7-1 standard, and canbe manufactured according to the requirements of manufactures
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