Features: 1、 High quality and low priced castings, high performance to price relative, cost can be largely reduced for large-scaled processing factories 2、Very accurate castings, their precision can be as high as CT4-CT6 3、Highly smoothing surface and sharp detailed castings, with surface roughness of only Ra0.6-8μm 4、High mould strength under high temperature, cracking free and self disintegrated when plunging into water and easy to deflasking