... available.1. Company information: We specialize in cast iron products, and some engineers have over 40 years ... ' information: Our main products include: i) alloy cast irons, gray iron, Ductile iron parts (G3000, G3500, GG20, GG25, GG30, ... Cr-Mo, L-NiCuCrl562.1563) , ii) grey high-carbon cast iron iii) high-silicon,high carbon contents (the ... , and they are warmly welcome. grey iron brake drum for cars