Ecvv Trade
Shanxi Weigao Petroleum Drilling Tool Manufacturing Co., Ltd.

China Manufacturer with main products: square kelly, hexagonal kelly, kellys, drill collar, non-magnetic dril collar, intergral heavy weight drill pipe, drill pipes, lifting sub,...

Cross-Over Sub


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Place of Origin: Shanxi in China

Specifications

It’s made from aisi4145h chrome-molybdenum steel. The content of microelement is effectively controlled. The surface of connector thread is phosphorized or copperized. There are three types according to its shapes and uses:

   a (same diameter): one sub only has one OD size

   b (different diameters): one sub has two OD sizes

   c (left-handed): sub’s connected thread is left-handed

Function: performing the function of connecting and switching in drills with different specifications

Feature: two types of subs, in accordance with the standard of SY5200-93 ( Sub of Drill Stem) or API  Spec7. The products for exfactory are tested by ultrasonic without damage and copperized on the surface of threads. We can produce all kinds of switchover joints with different specifications and lengthes.

Service Process

Service Guarantee

  • Free Service Charge

    ECVV doesn't charge any service fee to Buyers for buying this product.

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  • Product Quality Commitment

    ECVV China Sourcing Agent will assess the reputation and supply ability of the factory and conduct field trips to select the high-quality Chinese factories for buyers.

  • Deposit Service Commitments

    In order to improve the quality of service, ECVV will charge for a 100CNY deposit for the agent purchasing order, and the deposit will be part of subsequent purchasing costs.

    After paying a deposit, if the purchasing order is not completed because of unsatisfied ECVV services, ECVV will refund your deposit.

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