Xi’an Chancemate Petroleum Mechanical Co.,Ltd

Xi’an Chancemate Petroleum Mechanical Co.,Ltd

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  • Kelly Valve & Inside BOP
  • Casing Centralizer,Float Shoe
  • FP 5.5 inch Mud Bucket
  • Hammer Union & Air O Union
  • 5 inch 5K Manifold Fittings
  • API 8C Elevator Link
  • API 16A Spacer Spool
  • API 6A Flange, DSA
  • FMC Swivel Joint, Tee, Cross
  • Handling Tools
  • API 6A Valve
  • Annular BOP and Ram BOP
  • BOP Control Unit
  • Wellhead Assy& X-mas Tree
  • Fishing Tools & Mill Shoe
  • SS316 Ring Gasket
  • B7/2H stud bolts & nut
  • Contact Us

    Tel: +0086-29-8313124
    Fax: +0086-29-8313124
    E-mail: sales1@chancematewellcontrol.com
    Add: No.105 Dongguan South Street,Beilin District, Xi’an City, Shaanxi Province,China
    Skype: chancematewellcontrol

    API 7-1 cross-over sub (crossover sub or x-over sub)
    Product Name:
    API 7-1 cross-over sub (crossover sub or x-over sub)
    No. :
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    Product Description

    API 7-1 cross-over sub (crossover sub or x-over sub)


    API 7-1 cross-over sub (crossover sub or x-over sub)

    Our API 7-1 cross-over sub (crossover sub or x-over sub) is manufactured from one pice of solid bars, by forging, heat treated and machined. Material we use is AISI 4145H for high quality to ensure your usage for oil well drilling to connect the drill stems, such as drill pipe, drill collar, integral blade stabilizer, etc.

    API 7-1 cross-over sub (crossover sub or x-over sub) size is as belowings:

    6-3/4” OD x 2-1/4” ID. NC50 Box Boreback x Reduced Section 4-3/4” OD with NC38 Pin SRG

    4-3/4” OD x 2-1/2” ID. API 3-1/2” IF Pin x Box

    5-1/2” OD x 3-1/4” ID. 7” Box Tool Joint OD. HT55 Pin x XT57 Box

    5-1/2” OD x 2-13/16” ID. 6-5/8” Box Tool Joint OD. XT57 Pin x NC50 Box

    5-1/2” OD x 2-13/16” ID. 7-1/4” Box tool joint OD. XT57 Pin x NC50 Box

    8” OD x 2-13/16” ID. 6-5/8” REG Pin x GP XT57 Box

    7” OD x 3” ID. NC50 Pin x XT57 Box

    Send your inquiry to email: sales@chancematewellcontrol.com, we are waiting for you.

    Related Products :
    Cross-over sub
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    API circulating sub
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    API integral lifting sub for lifting drilling tool
    API integral lifting sub for lifting drilling tool
    Type H safety joint and Type AJ safety joint
    Type H safety joint and Type AJ safety joint