• <small id="aog4k"><li id="aog4k"></li></small><div id="aog4k"><li id="aog4k"></li></div>
  • <div id="aog4k"></div>
    <small id="aog4k"></small>
  • <menu id="aog4k"></menu><li id="aog4k"><li id="aog4k"></li></li>
  • <small id="aog4k"></small><div id="aog4k"></div>
  • <div id="aog4k"><li id="aog4k"></li></div>

    Never forget the original intention

    it has obtained 3 invention patents and 9 utility model patents and participated in drafting the national standard for starting lead-acid batteries.

    Discover More

    Over 26 years of development

    our batteries have advantages of outstanding low-temperature starting performance, shock resistance, long life, and easy maintenance.

    Discover More

    Enterprise concept

    Integrity, efficiency, quality and service

    Discover More

    about us


    Our Latest Work


    SHANDONG YONGLIJINGGONG PETROLEUM EQUIPMENT CO.,LTD.was established in 2008 with the registered capital RMB 62 million. It has been one of the largest scale and most species industries in the current domestic petroleum tubing and casing coupling industry. The products can cover all grade and thread in the range of API standard and the company is also engaged in research and development, production, sales and service of special thread and new material products.

    Learn More

    Well known enterprises

    It has 6 invention patents

    One stop service provider

    Focus on unconventional oil and gas special pipe

    Three production bases

    Focus on technological innovation and product R & D

    The company passed the ISO9001 quality management system certification in 2004 and the three system certification of "quality, environment, occupational health and safety management" in 2009



    Our Latest Work

    Tubing and Casing Series

    Coupling series

    News Center

    Excellent technical team and unique climate environment have accumulated for decades

    contact us

    you can write your message in here, we will reply as soon as possible: