Thước thủy đo độ phẳng Obishi 506-A , AC151, AC152, AC153, AC201, AC202, AC203, AC251, AC252, AC253, AC301, AC302, AC303

Code No.	Nominal	Measurement (L×W×H mm）	Sensitivity (mm/m)	Mass (kg)
AC151	150	150×44×42	0.02	1.1
AC152			0.05
AC153			0.1
AC201	200	200×46×42	0.02	1.4
AC202			0.05
AC203			0.1
AC251	250	250×46×42	0.02	1.6
AC252			0.05
AC253			0.1
AC301	300	300×50×42	0.02	1.8
AC302			0.05
AC303			0.1