About Us

        Founded in 2017, Classic (Shenzhen) Energy Technology Co., Ltd. (“CsTeC”) is located in Shenzhen, the window of China’s reform and opening up, the core city of Guangdong-Hong Kong-Macao Greater Bay Area, the global ocean center city, China’s Silicon Valley and China’s technology capital. CsTeC is a comprehensive energy service provider and high-end oil and gas equipment manufacturer focusing on oil and gas and general industrial fields, the business scope covers intelligent wellhead automation equipment and systems, pipe corrosion prevention solutions, 3D printing rapid prototyping solutions, high-end OCTG quick inflatable thread protector solutions, high-end FFKM O-Ring solutions and various high-end high temperature and high pressure grease products for pipe-thread–valves applications. CsTeC is also the brand operator of the Liquid-O-Ring brand in China. Since its establishment, CsTeC has always adhered to the core operating philosophy of “customer interests first”, continuously innovated and created, continuously integrated, continuously integrated high-quality resources, continuously and efficiently provided customers with diversified and customized system solutions, and persistently committed to improving customer satisfaction. In the cooperation with international and domestic related industry companies continue to develop and grow.
        The trademarks that CsTeC is operating like “Liquid-O-Ring”, “Liquilon”, “Liqui-Lok”, “Valve Guardian”, “SureSeal”, “SpeedTork”, “TorkDrive” and “MacDrill” are internationally renowned trademarks that have been well-known in the industry for decades. In 2022, CsTeC appeared in the 22nd China International Petroleum and Petrochemical Technology and Equipment Exhibition held in Shenzhen International Convention and Exhibition Center and achieved unprecedented success. So far, Liquid-O-Ring brand series products such as 250 Liqui-Lok, 252 Liqui-Lok, 318, 236, 404EU, 104EU, 101EU, TX151, 636G, 167ML50, 400, PM600, 710, 740, WLR111, PM100, 753, 402, 1250, etc., have been widely used in China’s domestic oil and gas, aviation, geothermal, automotive, electronics, new energy and other fields, and were highly recognized by the industry customers with its high quality and cost-effective.
        CsTeC has registered and is currently registering more than 130 trademarks and patents with independent intellectual property rights, among which “CsTeC”, “CsTeClepo”, “RoCsTeC”, “RwCsTeC”, “CsTeC-DDV”, “SuperGuard”and other trademarks have been put into use in relevant innovative products independently developed by CsTeC and are gradually known to more and more customers. In 2023, CsTeC was invited to participate in the sixth innovation achievements promotion activity jointly sponsored by the “Discover Brand” column group, “China Famous Brand” magazine, the China International Brand Strategy Research Center of the University of International Business and Economics, and the Independent Brand Selection Engineering Office. According to CsTeC’s outstanding achievements in “scientific and technological innovation, brand creation, specialization, new consumption, new formats, integration and improvement of industrial chain, supply chain and innovation chain” and outstanding contributions in this field, the Organizing committee nominated and recommended CsTeC as “the most competitive Brand in 2022, the leading Enterprise in promoting economic development in 2022, and 2022. Annual innovation role model “and attended the launch event. In 2024, CsTeC was once again invited to participate in the 2024 New Era Economic Innovation and Brand Development Conference and innovation achievements promotion and release event jointly organized by China Business Magazine, the column group of Brand Discovery, the column of Strong Power Intelligence, the China International Brand Strategy Research Center of the University of International Business and Economics, the Independent Brand Selection Project and other institutions. And shortlisted for “2024 industry leading brand, 2024 Excellent Enterprise to promote (industry) innovation and development, 2024 Excellent innovative entrepreneur in the new era”.
        On November 29, 2024, the first trial of the innovative “RoCsTeC” series of special oil treatment devices independently developed by the CsTeC scientific research team was a complete success. On January 17, 2025, the first trial of the innovative enhanced version of the “RwCsTeC” series of multi-purpose grease special treatment devices, further independently developed by the CsTeC research team on the basis of the “RoCsTeC” series products, also achieved a complete success. CsTeC has applied for relevant patents for the above two independently developed innovative products.
        On January 16, 2025, the first trial of the innovative “SuperGuard” series of rapid stand protector products for tubing and casing developed by the CsTeC scientific research team was a complete success. “SuperGuard” series of tubing and casing quick stand protector products are the first inflatable stand protector products in China, developed by the scientific research team of CsTeC, which integrates the industry’s top quality resources and integrates the latest scientific and technological elements, and the overall performance reaches the international advanced level. “SuperGuard” series of rapid stand protector products for tubing and casing is another milestone of the CsTeC team’s painstaking research and excellence to help the great cause of deep-water oil and gas field development in China.
        On June 16, 2025, the innovative CsTeClepo brand tubing and casing quick inflatable thread protector of CsTeC Company has successfully completed its first systematic functional test. The CsTeClepo brand tubing and casing quick inflatable thread protector was independently developed by CsTeC Company by integrating the top-quality resources within the industry, integrating the latest technological elements, self-funded investment in research and development, delving deeply, exploring, repeatedly testing and practicing, continuously innovating and creating, and striving for excellence. It took 12 months of meticulous research and development to complete. Its main design is applied to deep water and ultra-deep water platform drilling and completion operations. The authoritative institutions have comprehensively verified that its overall performance, including tensile strength, pressure resistance strength, wear index, etc., has reached the international leading level. The CsTeClepo brand tubing and casing quick inflatable thread protector is another significant breakthrough of CsTeC Company after the SuperGuard brand tubing and casing stand protector product. It is another milestone masterpiece of CsTeC Company, dedicated to helping the great cause of deep water oil and gas field development in China and the world’s deep water and ultra-deep water oilfield development projects. CsTeC has also applied for patents for these self-developed innovative product. CsTeC – Harmonious but Distinctive; CsTeC – Persistent and Service Forever.
        Focusing on global business, CsTeC has set up branches in Hong Kong, the third largest international financial center in the world and another core city of the Guangdong-Hong Kong-Macao Greater Bay Area, and Huizhou, an important node city of the Guangdong-Hong Kong-Macao Greater Bay Area. CsTeC looks forward to continuous and in-depth active cooperation with relevant international and domestic industry companies and colleagues under the grand blueprint of the new era of “to the deep sea, to the far sea”, and CsTeC will deeply root in the Guangdong-Hong Kong-Macao Greater Bay Area. CsTeC looks forward to working together with you to create a better tomorrow!