On June 1st, 2026, CsTeC launched the SureSeal brand high-end customized high-temperature and high-pressure O-ring series products. The SureSeal brand, under CsTeC, was established in 2022. The trademark registration certificate number is 63265885, and the registration category is 17. The specific registered content includes sealing gaskets; rubber or vulcanized fiber gaskets; waterproof sealing materials; non-metallic hoses; raw rubber or semi-finished rubber; synthetic rubber; industrial latex; rubber or hard fiber gaskets; anti-rust sealing materials, etc. On January 29th, 2026, CsTeC launched the SureSeal brand specific O-ring products for tubing and casing inflatable thread protectors. The SureSeal brand specific O-ring products for tubing and casing inflatable thread protectors are a high-end O-ring product developed by the CsTeC team. They are also applicable to CsTeClepo brand tubing and casing inflatable thread protectors, SuperGuard brand stand protectors, SmartGuard brand stand protectors, CsTeCitp brand tubing and casing inflatable thread protectors, and other related similar products.
The SureSeal brand high-end customized high-temperature and high-pressure O-ring series products under CsTeC cover FFKM-perfluoroether and HNBR materials. The temperature ratings mainly include 260℃, 204℃ and 150℃. The SureSeal brand is a high-end customized brand of CsTeC in the high-temperature and high-pressure O-ring technology direction. The SureSeal brand high-end customized high-temperature and high-pressure O-ring products come with many high-end high-temperature and high-pressure lubricant and sealant products from CsTeC’s Liquid-O-Ring brand, such as 101EU, 404EU, PM600, NC111, etc. The combination technology solution of CsTeC’s SureSeal brand high-end customized high-temperature and high-pressure O-ring products and Liquid-O-Ring brand high-end lubricants and sealants is increasingly serving various fields such as oil and gas, aerospace, military electronics, offshore engineering, wastewater treatment, textile printing and dyeing, chemical industry, artificial intelligence, rail transit, new energy, etc., and is specifically applied to components such as packers, liner hangers, wireline operation equipment, downhole tools, drilling tools, wellheads, plugs, joints, valves, instruments and meters, submersible electric pumps, pumps, pistons, motors, etc.
The Liquid-O-Ring brand was established in 1958. Since its establishment, it has continuously made breakthroughs and grown continuously. Currently, it can provide over 1000 products for various fields including oil and gas, aerospace electronics, offshore engineering, automobiles, agricultural machinery, logistics transportation, textile printing and dyeing, medical care, new energy, etc., including top-grade threads for oil pipes, casing, drill pipes, drill collars, special lubricants for oil pipes, pipeline coatings, valve lubricants, sealants, special lubricants, greases and downhole operation sealants. Its business scope covers more than 130 countries and regions around the world. As the brand operator of Liquid-O-Ring brand in China, CsTeC Company collaborates with the manufacturer of Liquid-O-Ring brand products to serve global customers such as Fortune 500 oil companies, international oilfield service companies, and international energy equipment manufacturers, providing various customized products and customized solutions that meet technical requirements including deep water, ultra-deep water, high temperature, ultra-high temperature, low temperature, ultra-low temperature, high pressure, and ultra-high pressure. Products of the Liquid-O-Ring brand have respectively received honors such as the “Export Star Award” from the President of the United States in 2015, the “Achievement Award of International Trade Development Group” in 2013, and the “Export Star Award” from the President in 2010.
The Classic (Shenzhen) Energy Technology Co., Ltd. (referred to as “CsTeC”) currently has flagship stores for the Liquid-O-Ring brand and the SureSeal brand on E-platforms such as Marco Polo, Sun Enterprise Network, and Taobao. For more details, you can also consult the official website of CsTeC.
CsTeC has sales, technical support, and after-sales service teams in Shenzhen, Huizhou, and Hong Kong, and also has their own operation service bases. CsTeC has always adhered to the operation philosophy of “Client’s interests come first” and the dual-track operation model of “online and offline”. The three operation bases of CsTeC provide customized products, customized technical solutions, and customized delivery plans, etc., to meet the business needs of domestic and international customers 24/7/7 days a week. CsTeC team looks forward to every communication and exchange with you, and looks forward to working together with you to create a brighter future together. (2026-06-01)
