ČSN	DIN EN 1561	DIN EN 1691	Rm min (N/mm2)	HB max (Brinell)
422304	EN-GJS-400-15	GGG 40	400	200
	EN-GJS-400-18U-LT	GGG 40.3	400	140-200
422305	EN-GJS-500-7	GGG 50	500	230
422306	EN-GJS-600-3	GGG 60	600	270
422307	EN-GJS-700-2	GGG 70	700	300