Type	Thickness	405	420	436	510	530	570	650	680	700
	(mm)	(nm)	(nm)	(nm)	(nm)	(nm)	(nm)	(nm)	(nm)	(nm)
*HB1	2		74.3~80.7		57.9~71.3		63.5~74.7		≥76.4
HB3	2			440		≤0.9		45.0~70.0
				1.0-9.0
*HB5	2	≥35.7		≤7.1
HB6	2						590	640		2.1~4.8
							0.8-2.0	1.1-2.5