Item No.	TYPE            LxWxH(mm)	Flatness         of measuring seat working surface (μm)	measuring height(mm)
	GSB001	150x100	2	0-100
	GSB002	200x150	2	0-250
	GSB003	300x200	2	0-250
	GSB004	400x250	2	0-350
Notes:1) cooperate with block rule usage centesimal meter millenarian meter, electronic exam
head to relatively measure the size of fittings and finished products.
2)No measuring devices and wooden box attached, if required, pls inform us.