An yi amfani da shi don alamun bugawa yayin gwajin shrinkage.
Cikakken kayan m, don hana kayan buga littattafai a karkashin alagari, yana shafar sakamakon edime.
1. Buga jerawa da daidaitawa: 250mm, 350mm, 350mm ± 1mm (inci 10, inci 8, inci 8, inci 8 na inci)
2. Girma: 600mm × 600mm × 40mm (l× w × h)
3. Nauyi: 0.5kg