1FPower System
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    2FCylinders
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      3FLift System
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        4FSteering System
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          5FBrake System
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            6FWheels Rims
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              7FDrive System
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                8FTransmission System
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                  9FExhaust System
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                    10FHydraulic System
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                      11FThe Frame and Others
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                        12FCooling System
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                          13FElectric Systems
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                            14FFilter Series
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                              15FForklift Attachments
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                                16FOperating system
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