Ningbo Supreme Machinery Co., Ltd is a professional Metal Foundry in China. We have been producing gray iron casting, ductile iron casting and precision investment casting for more than 25 years.
We are dedicated to meet different requirements of various customers across the world, products are mainly involved agricultural machinery casting and construction machinery casting, hydraulic casting , Mining industry, automotive part, post tension anchorage, some steel casting and stainless steel casting for pump part and valve body, pipe fittings, railway part etc.
The basic feature of silica sol precision casting is that it uses fusible material as the pattern and refractory as the casting mold. Before pouring, the pattern is melted to form the cavity of the casting mold. As early as 3000 years ago, this process has been used to cast handicrafts. During the S......
Since self setting resin sand casting has the advantages of good surface quality, high dimensional accuracy, low reject rate, wide application range, low requirements for workers' technical level, greatly reducing the labor intensity of workers and improving the working environment, more and more do......
In the process of casting at high temperature, due to the thermal expansion of molding sand, it is very easy to cause minor changes in the size of molding sand, which will affect the dimensional accuracy of castings and the appearance and performance of castings. At the same time, excessive thermal ......