In 2006, the company expanded its production scale and established separately （DHJ  Radiator Manufacturing Co., Ltd. )

is a subsidiary of car radiator and truck radiator, We will implement the strategy of collectivization and diversification, introduce production lines for aluminum radiators,

and establish specialized production lines for aluminum automotive radiators, oil radiators, intercoolers, air conditioning evaporators, condensers, and automotive air heaters.


The company has passed ISO 9001 quality system certification in May 2006, and introduced ISO / TS 16949 quality management system in 2006.

 

In January 2008, the company passed 16949 quality management system certification,