304 stainless steel flat welding flange welding device is easy to align, and the device is simple and convenient;It is widely used in many industries, such as metallurgy, machinery, chemical industry, petroleum, machine tool, water conservancy, constructi
This type of PE protective film for door is used to protect doors’ surface ; viscosity: low / medium / medium high / high; it is dustproof, moistureproof, and anti-friction; color: transparent, white, blue, black
Make the wax pattern according to the required size and shape, and covered the pattern with refractory slurry and dry it many times, then formeing a hard shell outside the wax pattern. When melting the wax pattern by heating, we can obtain cavities formed
1.Decontaminate the melting metal liquid2.Simplified gating system3.Improve the metallurgical structure of the castings4.Reduce impurities of the castings