Topic: Rust.
Why is oxalic acid used to remove rust stains?
Hey.
You have a beautiful antique lamp.
But look.
It has a rust stain on it.
No.
Don't clean the rust stain with water.
Instead, use this oxalic acid.
Oxalic Acid.
应用名称:每日英语听力 | 开发者:上海倩言网络科技有限公司
应用版本:9.7.0 | 权限详情 | 隐私协议 | 功能介绍