Oil casing coupler manufacturing company drilling crossover sub
excellent quality
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experience,sincere service
Crossover adapter nipples, tubing & casing nipples, and seating nipples are made from API grades of pipe and mechanical tubing. Rigid quality standards are maintained throughought the manufacturing process by frequent inspection and testing. Raw material quality is assured by our quality assurance program.
An Adapter Sub or Crossover Sub is used to connect one type of thread to another. Available in any combination of Box x Box, Pin x Box, or Pin x Pin. Many different thread types can be involved with different lengths, wall thicknesses, and material types.
Dalipu carries or manufactures the adapter or crossover sub required for your installation, including:
（1）Flange adapter（2）Crossover sub（3）Drill Rod Adapter（4）Core Barrel Adapter
（5）Casing Adapter（6）Saver Subs（7）Overshot（8）Taper
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