Standard equipment refers to the national or international standards in accordance with the production, molding of general products, such as general-purpose ordinary lathes, milling machines, engineering machinery, etc.:
Non-standard equipment refers to the manufacture of a certain purpose, there is no uniform standard of special equipment, such as a certain experimental equipment, the manufacture of some special parts of the tooling, molds and so on. For aerospace use most of the equipment is non-standard equipment, because it is based on different models, parts of different shapes need specialized equipment to process.