... 3, Application:Food packing, Food storing, Electric & Electronic industry, Petro-gas & Oil field, Chemicals & Petro-chemicals, ... and blowing, etc. Used in fields such as metal heating treatment, powder metallurgy, magnetic material, copper ... technology, intermediate, etc. 3. Electronic industry: For encapsulation, agglomeration, anneal, deoxidization, storage of electronic products. Used in fields ...