Rings and circular blanks

Our staff custom-manufactures rings and circular blanks in outside diameters from 130 mm to 2,000 mm and inside diameters starting from 33 mm. 
Please note the tolerances:

 

on outside diameters +2, -0 mm on inside diameters -2, +0 mm

 

with drill holes:	Thickness in mm	Diameter in mm	Tolerance (+/-) in mm
	up to 50 mm	33-70	0,5
		80-90	1,5
		98-110	1,5
	up to 100 mm	33-70	0,5
		80-90	1,5
		95-100	1,5
	up to 150 mm	33-70	0,5
		80-90	1,5