Due to the internal combustion engine piston under high load conditions of high temperature and pressure, the piston is relatively high, so mainly talk about the internal combustion engine piston.
    1.Fuel points, can be divided into gasoline piston, diesel engine piston, gas piston.
    2. points, according to the a piston manufacturing of material can be divided into cast iron piston, steel piston, aluminum alloy pistons, and composite piston.
    3.Press manufacturing piston blank process points, can be divided into gravity casting piston, squeeze casting pistons, forged piston.
    4. The piston working conditions to points, can be divided into a non-pressurized piston and pressurized piston two categories.
    5. Press piston purposes points, can be divided into cars piston, truck piston, motorcycle piston, marine piston tanks piston, tractor piston lawnmower piston etc..