Ningbo Yinzhou Maoda Diesel Engine Fittings Factory is specialized in the manufacturing of valve guides. Our valve guides are widely used in various ships, locomotives and land use protestations ,covering those for two-stroke and four-stroke engines with cylinder diameter from 150～800mm.By the means of chemical analysis, metallographic examination, hear treatment, performance experiment, hardness inspection, precision inspection and roughness inspection, etc, we ensure that performance of our valve guides leads that of similar domestic manufacturers. Materials of our valve guides are wearable alloy casts (GG25, GG30, GG35, GGV, and PVA).

valve guides, diesel engine fittings, valve guide manufacturers.