LanYu technologies are designers and manufacturers of high quality stainless steel exhaust systems, catalytic converters and DPFs(Diesel Particulate Filters). As a Chinese environmental company, we specialize in automobile emission control, providing environment protection products such as catalytic converters (CAT) and DPFs of high quality at a low cost.  
We manufacture a complete line of Exhaust Gas Purifiers for diesel, and gasoline engines.An Exhaust Gas Purifier will reduce toxic exhaust gas pollutants such as Carbon Monoxide (CO) and hydrocarbons (HC) by up to 90%+.Our products are designed for off-road applications ranging from mining, tunneling, construction and materials handling to small utility engines and electric power generators.