A: According to the fuel used, it can be divided into gasoline engine piston, diesel engine piston and natural gas piston;
According to the material of the manufacturing piston, it can be divided into cast iron piston, steel piston, aluminum alloy piston and combined piston;
According to the process of manufacturing the piston blank, it can be divided into gravity casting piston, squeeze casting piston and forging piston;
According to the working condition of the piston, it can be divided into two categories: non-pressurized piston and pressurized piston;
According to the purpose of the piston, it can be divided into car piston, truck piston, motorcycle piston, marine piston, tank piston, tractor piston, lawn mower piston and so on.