Shandong Longkou Oil Pipe Co., Ltd. (formerly Shandong Longkou Oil Pipe Factory) was established in Longkou City, Shandong Province. It was founded in 1958. It is a professional manufacturer of high and low pressure pipelines for automobile and diesel engines. It is the largest and most diverse in the domestic oil pipe industry. All manufacturers. The company is the first in the domestic oil pipe industry to pass ISO9001, ISO/TS16949 quality system certification and ISO14000 environmental system certification and French BV classification society certification. The "Long Guan" brand trademark was recognized as "Shandong Famous Brand"; the "Long Guan" brand diesel engine high pressure oil pipe was awarded the title of "Shandong Famous Brand".
The company currently covers an area of more than 130 acres and has more than 780 employees. In 2009, it produced 36 million high and low pressure oil pipes with sales of 560 million yuan. The Enterprise Technology Center has 35 designers and is the first in the industry to adopt ProE design software to provide customers with design development and 3D digital modeling. The company has more than 150 sets of production and inspection professional equipment imported from Germany, Britain, Finland, Taiwan and other countries and regions, which provides a strong guarantee for providing customers with quality products.
The company has long been supporting the automobile and engine companies of Weichai, Yuchai, Xichai, Shangchai, Dachai, Dongfeng, Jiangling, Futian, Great Wall, Jianghuai, Iveco, Renault and Hino; the domestic host supporting rate of high-pressure oil pipes is over 70%. The diesel engine low-pressure pipeline has a domestic mainframe supporting ratio of more than 40%; the marine engine double-layer protective high-pressure tubing has obtained national patents, and the domestic mainframe supporting market is close to 100%.
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