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

professional silica sol castings company, we have our own silica sol castings factory, welcome to wholesale products from us.
Specifications
1.Investment casting steel
2.CNC Machining
3.Technics:silica sol technics
4.Make by your design
5.Best servic.http://www.castingsmanufacturers.com