Prior to this, Linglong Tire has won the first prize of Shandong Province for scientific and technological progress, the second prize for national science and technology progress, and the second prize for national technology invention. This time, the exquisite tire technology innovation system (corporate science and technology innovation) won the second prize of Shandong Provincial Science and Technology Progress Award, once again embodies the exquisite tire technology level and industry leading position. For many years, Linglong Tire always regards technological innovation as the top priority in enhancing the competitiveness of the company's market. It has established a national-level technology center, a national accredited laboratory, and has world-class experimental testing equipment. It has established the first domestic company with world-class standards. Tire experiment bases and high-performance tire R&D centers participating in international competition have formed a group of industry-leading and world-class key technologies and high-tech products. The research and development of graphene tires, dandelion tires, run-flat tires and other high-performance tires have already taken off. Industry-leading companies. Innovation is the driving force for the continuous development of the company. Linglong Tire will continue to enhance its independent innovation capabilities, take a new road to industrialization with independent research and development, independent brands, and independent intellectual property rights, and rely on technological innovation to enhance product quality, and thus break through barriers to international trade and achieve The development of the company's internationalization is striding forward, and it strives to realize the goal of world-class tire companies as soon as possible.
We are manufacturer of heat treated steel pipes include quenched and tempered steel pipe, normalized steel pipe and annealed steel pipe among carbon steel pipe and alloy steel pipe. Our advantages and more services of heat treated steel pipes includes:
1) Wide range of sizes, out diameter from 20mm to 100mm
2) Customized Length from 100mm to 12000mm
3) Good surface roughness: 0.4um to 1.5um
4) Good straightness: 0.5mm/m to 2mm/m
5) Matched further processing: Grinding, polishing, straightening
5) Anti-rusty package
7) Full sets of testing equipment: Surface, Dimenstion. Mechanical properties testing
8) Fast delivery time
Quenched and Tempered Pipe,Quenched and Tempered Steel Pipe,Quenched and Tempered Steel Tubes,Qt Steel Pipes,Qt Steel Tubes SHANDONG LE REN SPECIAL STEEL CO., LTD. , https://www.js-luggagecarts.com
National Enterprise Technology Center 
National Accreditation Laboratory 
The first domestic noise laboratory 
Rolling resistance laboratory 
Six-component laboratories
On January 9, 2018, the Shandong Provincial Department of Science and Technology recommended the awards and projects to be awarded to the 2017 Shandong Provincial Highest Science and Technology Award, the Natural Science Award, the Technological Invention Award, the Scientific and Technological Progress Award, and the International Science and Technology Cooperation Award Evaluation Committee. Social publicity. The exquisite tire technology innovation system (corporate science and technology innovation) was awarded the second prize of the Shandong Provincial Science and Technology Progress Award and became the only tire company listed.