1. Independent 4-valve structure,whirlpool inlet could provide excellent airflow and excellent performance.

2. The oil, water and air lines are located at the internal of the cylinder head. It is not only very economy but also with high efficiency.

3. Adopting alloy cast iron with extra strength and rigidity.

4. Different characteristic for Different series:
    1) M11 series adopting 6cylinder 1head design and are compact,light and with high strength.
    2)NT series adopting 2 cylinder1 head design and with high strength and reliability.
    3)K series adopting 1 cylinder1 head design and with high strength and easy maintenance.