OEM is the abbreviation for Original Equipment Manufacturer in English. According to its literal meaning, it should be translated as Original Equipment Manufacturer, referring to a manufacturer producing products and product accessories for another manufacturer based on their requirements, also known as OEM production or authorized OEM production. It can represent outsourcing processing or subcontracting contract processing. Domestically, it is commonly referred to as collaborative production, third-party processing, or processing trade. Originally popular in developed countries such as Europe and America, it is a game rule for international large companies to find their own comparative advantages, which can reduce production costs and increase brand added value.