AMERICAN SHOWA offers steering systems and shock absorbers for automobiles. It has achieved ISO 14000 certification from the International Standardization for Organization for Standardization. The company has affiliations with SHOWA CORPORATION, which offers differential gears, power tilt and trim units for outboard engines and propeller shafts for gas springs. It serves clients, such as Honda Motor Company, Suzuki Motor, Kawasaki Heavy Industries, Mitsubishi Motors, Fuji Heavy Industries, Mazda Motor and Daihatsu Motor. SHOWA CORPORATION also serves clients, such as Harley-Davidson, Buell Motorcycles and Triumph Motorcycles.