Here is the thin gauge sheet steel that used to create the scree profile tool.

这里是薄规格钢板说，用来建立卵石的个人资料的工具。

youdao

Here is the thin gauge sheet steel that used to create the scree profile tool.

这里是薄规格钢板说，用来建立卵石的个人资料的工具。

youdao