| 摘要 |
A drum includes a shell, which is made of environment friendly materials such as polyethylene terephthalate (PET), Polycarbonate (PC), Polystyrene (PS), and Polypropylene (PP); furthermore, after shaping, the drum shell is printed, plated, and decorated with stickers on the surface so as to be bright-colored and capable of varying in colors.
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