首页  ꄲ  生产定制  ꄲ  3.原材料 Material
3.原材料Material
넳 넲

3.原材料 Material

Material
Commonly used raw materials include kraft paper, CCNB, and copper paper

 

原材料
常备的原料有牛皮纸和灰铜纸还有铜版纸