... ) SIMENS PLC Controller 1, Product Name: Nitrogen Machine/ N2 Gas EquipmentA full installation requires air compressor, ... blowing, etc. Used in fields such as metal heating treatment, powder metallurgy, magnetic material, copper process, ... elastic fiber, rubber, plastic, tyre, polyurethane, biological technology, intermediate, etc. 3. Electronic industry: For encapsulation, agglomeration, anneal, ...