Level 5:      Full...


Level 5:      Full option tank, with up to 90% metal parts
Level 4:      Middle option tank: tank with metal tub, metal or steel gear and other metal parts
Level 3:      Basic tank with advanced options such as airbrush coating, metal gear, etc
Level 2:      Base tank made of plastic
Level 1:      Heng Long base tank, a good start

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