Quality Makes The Brand

Integrity Makes The Future

Xingtai Tiannai Seal Co., Ltd. (TNB OIL SEAL)., established in 2000, is a professional factory for the production and development of auto parts, with advanced production and testing equipment and professional technicians.

In full accordance with the ISO9000 quality management system model, a high-efficiency team of independent development, research, production, manufacturing and testing has been established, the overall quality has been enhanced, and advanced management concepts at home and abroad have been optimized and absorbed. The axle factory has been rated as an A-level supplier, and it has been exported to more than 30 countries and regions such as Southeast Asia, the Middle East, Africa, South America, and Europe.

24 +

Company Established

100 +

Technical Staff

200 + sets

Advanced Production Equipment

1900 +

Automobile Oil Seal At Home And Abroad

Main Business

The company specializes in the production of rotary oil seals, reciprocating oil seals, valve oil seals, O-rings, hydraulic seals, steering gear repair kits and various special-shaped rubber miscellaneous parts, polyurethane, PTFE, nylon, copper, aluminum seals, widely used in Automobile, mining, light industry and other industries.

Sales Network

At present, the domestic and foreign markets are "the battle of the century". Tiannai regards quality as the foundation of survival, strengthens technological updates, actively cultivates talents, network technology elites, strictly controls enterprise management, improves production efficiency, and increases product types. Introduce advanced technology from Taiwan and Japan, and use imported and domestic high-quality raw materials to ensure product performance.

The company has always followed the principles of treating each other with sincerity, trust-based, mutual benefit and common development. The products are sold to large and small markets and factories and mines all over the world, and are well received by customers.