... system,railway system tetc. Material: carbon steel, alloy steel, grey iron,ductile iron, S.G.ironProducts: Slag pot, large gear ring, spur ... -A2USAASTM A 2760-30GermanyDIN 17182GS-16Mn5GermanyDIN 1681GS45InternationalISO 3755:1991 casting transfer ladle