... OEM is allowed 3. high speed steel 4. Komatsu, Hino, Isuzu, Mitsubishi Diesel Engine Nozzle1. P, S, DNS and DNP series2. OEM ... is allowed3. high speed steel4. Komatsu, Hino, Isuzu, Mitsubishi We ... specialized in developing and dealing with diesel engines and spare parts for diesel engine for years ...