Ductile Iron
ASTM A 536, 60-40-18, 60-45-12.
DIN 1693 GGG 35.3, GGG 40, GGG 50, GGG 60, GGG 70, GGG 80
ISO 1083 -370/17, 400/12, 500/7, 600/3, 700/2, 800/2
BS:2789 GR.370/17, GR.420/12, GR.500/7, GR.600/3, GR.700/2, GR.800/2
BS EN 124 DUCTILE IRON ISO 1083