Ductile cast iron gearbox Material: GGG40, Process; resin sand casting machining Other Material : gray iron GG15, GG20, GG25,GG30 ductile iron GGG40, GGG45, GGG50, GGG60 and GGG70 and equivalent other standardStandard : AISI, ASTM, JIS, BS, DIN, ISOUnit weight : up to 500 kgProcess : iron casting + complete machining + painting .