Automotive Engines: Internal-combustion engines, hybrid engines, methanol engines, etc.

Core Supporting Product Categories & Features:
Valve Stem Oil Seals: We provide customized sealing solutions tailored to different leakage rate requirements according to customers’ operating condition characteristics. Featuring excellent durability, they support long term reliable vehicle operation.
Crankshaft Oil Seals: Adopting low‑friction technology and dedicated coating processes, they deliver outstanding durability and low‑friction performance. Meanwhile, the mating static sealing rings for coolant and lubricant also feature long‑lasting durability. They can effectively block lubricant leakage, provide reliable sealing assurance for the engine lubrication system, reduce power loss and improve fuel economy.

Automotive Transmissions: ICE Vehicles, Hybrid Vehicles

Core Supporting Product Categories & Features:
Rotary‑shaft Oil Seals include input‑shaft and differential oil seals. Made of specially‑formulated materials, they withstand wide‑temperature‑range working conditions with long‑life performance for various transmission operating modes.
Automatic Transmission Pistons: With professional lip fatigue‑life analysis capacity, we develop products for varied pressures, broad temperature ranges and high‑cycle usage, featuring reliable sealing and high durability.
Static Sealing Gaskets: Capable of withstanding wide-temperature-range operating conditions and featuring long-term durability, they fit precisely against the mounting surface of the transmission housing, effectively preventing transmission-oil leakage and ensuring stable transmission operation.

NEV: Electric Drive Systems

Core Supporting Product Categories & Features:
Rotary-shaft Oil Seals: Including input-shaft oil seals and other variants, they are suitable for wide-temperature-range environments. Capable of meeting high-speed forward and reverse rotation requirements, they provide stable leak-free sealing and adapt to high-frequency start-stop and high-speed operating conditions of electric drive systems.
Static Sealing Gaskets: Adaptable to wide-temperature-range operating conditions and featuring long-term durability, they effectively block external moisture and dust from entering the interior of electric drive systems, ensuring coordinated and stable operation of all electric-drive-system components.

NEV: Battery Systems

Core Supporting Product Categories & Features:
Battery-cell Sealing Gaskets for Battery Packs: Manufactured from specially-formulated materials, they exhibit excellent electrolyte resistance, favorable insulation performance, low compression-set resistance and anti-oxidation properties. Adaptable to wide-temperature-range ambient temperatures, they deliver reliable sealing protection for battery cells.

Automotive Axle Seals (Drive, Front Axle & Others)

Pinion Shaft Oil Seals: With a dedicated structural design, they are suitable for sealing applications at the pinion-shaft position of various mainstream automotive axles. Featuring high-temperature adaptability, stable high-speed performance, dust-proof & water-proof properties and high reliability, they adopt specially-selected materials to meet service requirements in frigid low-temperature regions and deliver long-term durability.
Cartridge Oil Seals: Designed with a compact integrated structure, they are applied for sealing at the axle-hub positions of automotive axles. Characterized by high-efficiency sealing, space-saving performance, lenient requirements for shaft-surface quality, high reliability and maintenance-free operation, they are widely suitable for harsh working conditions such as dusty and water-immersed environments, and feature long-term durability.

Automotive Steering-gear Seals (ICE & EV)

High-pressure Hydraulic-cylinder Oil Seals: Used for high-pressure sealing in power steering gears, they feature high-pressure resistance, low friction torque, high reliability and long service life. They are compatible with media and operating-pressure requirements of steering-gear hydraulic systems and deliver long-term durability.
EPS Electric Oil Seals: Applied to positions such as recirculating-ball input shafts and EPS electric-power steering gears, they feature certain pressure-resistance capability, low friction coefficient, dust-proof & water-proof performance, high reliability and long service life. Specially-selected materials enable their application in frigid low-temperature regions with long-term durability.