如果基板是金属，如可能我就喷砂或者，作为第二选择80粒度的金刚砂纸。

If the substrate is metal, I sand blast it when possible or use 80 grit emery paper as a second choice.

youdao

如果基板是金属，如可能我就喷砂或者，作为第二选择80粒度的金刚砂纸。

If the substrate is metal, I sand blast it when possible or use 80 grit emery paper as a second choice.

youdao