Established in 1991,specializing in research, developing and manufacturing and marketing all kinds of emission control catalyst.We undertook many kinds of ?China national 863 programs? and get the leading technology in China. The vehicles and engines using our catalyst can meet the requirements of Euro-??,Euro-??, EPA ,CARB and DOT standards and regulations. Our products include metallic substrate, GR series catalyst and secondary air injection system, can be installed on the motorcycles, ATV, diesel engines and off-road engines.