Perimetrical joint 周边接缝
Joint perimetrical 周边接缝
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The gusset portion (16) preferably includes at least one perimetrical region which having a laterally projecting exterior gusset section (40) and a laterally projecting interior gusset section (42).
该角撑板部分(16)优选包括至少一个具有侧向突出的外部角撑板部分(40)和侧向突出的内部角撑板部分(42)的周边区域。
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