As a member of the China Friction Sealing Materials Association and a member of the China Association of Automobile Manufacturers, Hengtongs technical master pa......

In order to meet the different needs of customers in different countriesof the world, Hengtong has a dot component registration reply approved by the US Departm......

Our company is the governing unit of China Friction Sealing Material Association and member of China Automobile Industry Association. The companys products have......