... per drawing or samples 3.ISO9001:2008 4. OEM offerred Forged and casting valve body1. Company information: We are a professional ... ' information: Our main products include: i) alloy cast irons, gray iron, Ductile iron parts (G3000, G3500, GG20, GG25, GG30, GG35, GGG40, GGG50 ... %Cr-Mo, L-NiCuCrl562.1563) , ii) grey high-carbon cast iron iii) high-silicon,high carbon contents (the carbon content can ...