Ningbo Yinzhou Donghuang Industry & Trading Co.,Ltd is a leading China valve nut castings manufacturer and supplier, as a

professional valve nut castings company, we have our own valve nut castings factory, welcome to wholesale products from us.
specialized in manufacturing casting and forging parts with free shaped, such as pump parts, valve parts, mining parts are

all in our main scope, which is made of iron, steel, non-ferrous metal.http://www.castingsmanufacturers.com