What are the instructions for the manufacturing process of the pneumatic angle seat valve?

What are the manufacturing processes for pneumatic angle seat valves? The manufacture of pneumatic angle seat valves is a key project, so what is the process of manufacturing pneumatic angle seat valves?
The following describes the process of manufacturing a pneumatic angle seat valve:
1. The pneumatic angle seat valve is composed of valve body and accessories. The materials supplied on the market are made of various materials;
2. The process of manufacturing the pneumatic angle seat valve is made of stainless steel element and melted into a liquid at high temperature. The model has been made of silica sol. The next procedure is to slowly solidify the metal liquid, and the stainless steel pneumatic angle seat valve performs the entire process operation;
3. Pneumatic angle seat valve has 4 kinds of connecting pipe way: threaded connection port, flange type connection port, welded connection port; market needs to be obtained, applicable food equipment, environmental protection equipment, water treatment equipment, etc.;
4. Pneumatic angle seat valve manufacturing process: the valve body is made of CNC machine tool, and each part is carefully constructed. The matching angle seat valve controls the flow usage.