1套为砂纸架1个+砂布卷4卷
4卷砂布卷分别为120# 180# 240# 320#四个号，各一小卷。
砂布卷规格： 64MM*1170MM（单位为毫米）
1 set for sandpaper holder 1 + emery cloth roll 4 rolls
The four rolls of emery cloth were 120 # 180# 240# 320# four numbers, one each.
Emery cloth roll size: 64MM*1170MM (in mm)