SU料分为一级料、二级料、三级料、还有特级料,该怎么来区分呢?

2024-11-30 01:51:32
推荐回答(1个)
回答1:

一看颜色,纯料颜色较浅,因为不含杂志,二看光滑度。三看切口,好料切口与料身颜色一致,差点的切口泛白