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            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.

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            Over 26 years of development

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

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            Enterprise concept

            Integrity, efficiency, quality and service

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            about us

            ABOUT US

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            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.

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            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

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            Excellent technical team and unique climate environment have accumulated for decades

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