... drawing or samples 3.ISO9001:2008 4. OEM offered Timing pulley 1. Company information: We are a professional cast ... iron manufactuer, and some of our engineers have over 40 years' casting ... (G3000, G3500, GG20, GG25, GG30, GG35, GGG40, GGG50 and GGG60 15%Cr-Mo, L-NiCuCrl562.1563) , ii) grey ... , please contact us at your earliest convenience. Timing pulley