1·Crank of internal combustion engine is one of key components of powerplant of motor, train, ship and so on traffic equipment.
内燃机曲轴是是汽车、火车、船舶等交通运输设备的动力装置的关键零件之一。
2·A shaping machine which is used for processing the framework material comprises a frame, a powerplant, a steel tube clamp fastener, and a clamping transmission device.
一种加工骨架材料的成形机，包括机架、动力装置、钢管夹持器、夹持传动装置。