内外圈和保持架都是纯304的的翻译：Inner and outer rings and cage are pure 304 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

Inside and outside the ring and the cage is pure 304

Inner and outer rings and cage are pure 304

In the addendum circle and the retainer all are pure 304

Internal and external difficulties and maintain the framework are pure 304

Inner and outer rings and cage are pure 304