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Carefully Crafted Design

We founded Technology! R&D Center which leaded by Dr. Miao, including 12 engineers.

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Puyang Donghao Mechanical & Electronic Co., Ltd. was established in Jan 2005 as a producls supplier of Sinopec & CNPC

Powerful Admin

Mainly focusing on research & development (R&D) and production of downhole tools & water treatment equipments...


WooCommerce Installed

We have 180 employees & more than 80 mechanical equipments such as Vertical Machine Center...

Powerful Admin

Annual production capacity of downhole tools is 12,000 sets.

Carefully Crafted Design

We've contacted and cooperated i with' many R&D institutions and | pctrolcum collages constantly for years.

About Us


Puyang Donghao Mechanical & Electronic Co., Ltd. was established in Jan 2005 as a producls supplier of Sinopec & CNPC, mainly focusing on research & development (R&D) and production of downhole tools & water treatment equipments, registered capital is RMB 22 million.

We have 180 employees & more than 80 mechanical equipments such as Vertical Machine Center, CNC Lathes, Heat Treatments, Drilling Machine. Milling Machines, Wire Cutting Machincs, etc. Annual production capacity of downhole tools is 12,000 sets.

We founded Technology ! R&D Center which leaded by Dr. Miao, including 12 engineers. We've contacted and cooperated i with' many R&D institutions and | pctrolcum collages constantly for years.

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Company culture
  • Honesty and trustworthiness
  • Sense of worth
  • Time concept
  • strengthen one's belief
Company history
  • Honesty and trustworthiness
  • Sense of worth
  • Time concept
  • strengthen one's belief

Company Culture

Meanwhile we have a professional tcchnical service icam, can provide whole cquipnents.I suitable products and on1-sitc technical servicc which are hetter than others.

Company History

Puyang Donghao Mechanical & Electronic Co., Ltd. was established in Jan 2005 as a producls supplier of Sinopec & CNPC...

WooCommerce Installed

We have 180 employees & more than 80 mechanical equipments such as Vertical Machine Center

Carefully Crafted Design

We founded Technology ! R&D Center which leaded by Dr. Miao, including 12 engineers.

Powerful Admin

We invite agents and businessmen 1o communicale & hope for future cooperation with you sincerely!

News


  • 18/06/01

    Classification Of Packer

    Classification code fixed mode code number of the way to seal the way code to solve the maximum diameter of steel body operating temperature, pressure difference

  • 18/06/01

    What Are The Advantages Of Packer?

    Reduce the oil well packer water plugging construction process, can easily achieve the pressure not to put spray operation, and can withstand high pressure, long service life.

  • 18/06/01

    The Meaning Of Packer

    A downhole tool that has an elastic sealing element and is used to seal the annular space between the tubing string and the wellbore and the pipe string, and to isolate the production layer to control the production (injection) fluid and to protect the casing.

  • 18/05/31

    The Working Principle Of The Bridge Plug

    Using a cable or string to deliver it to the wellbore in a predetermined position, through gunpowder blasting, hydraulic sitting seal or mechanical sitting seal tool produced by the pressure on the slips

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