| 摘要 |
A composite chassis frame may include a primarily-formed core material having a steel core material and internal composite materials laminated on both surfaces of the steel core material, an internal core material disposed between the primarily-formed core materials, wherein the primarily-formed core materials may be laminated on both surfaces of the internal core material, and a secondarily-formed external composite material covering outer surfaces of the primarily-formed core materials and the internal core material as a skin material.
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