All external structure, all stainless steel production, materials thick, strong structure.
所有外在结构，全以不锈钢制作，材料厚实、结构强固。
The combination of corrugation and the circular tube results in an extremely strong structure.
波浪纸板和圆筒状两者结合，会成为非常坚固的构造。
The combination of corrugation and the circular tube results in an extremely strong structure.
波浪纸板和圆筒状两者结合，会成为非常坚固的构造。
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