Part is a specific equipment for the APC, can enhance the APC in certain way.
1. Each APC has Engine, Central Control System, Suspension frame, Tire, Armor, and Weapon each represents a different part.
2. Each part belongs to a series, and a different series of parts can be mixed and matched to choose the most beneficial effect. If you have multiple pieces of the same series, you can start the set bonus and get extra buffs.
3. Many materials must be prepared for crafting the parts, and the materials come from different building production. For details, please refer to the Parts and Energy core.