This standard is applicable to processes such as sewing, gluing, molding, vulcanization, injection molding, glue injection, side inserts, seam bonding, etc., as well as leather shoes made of various natural leather, artificial leather, synthetic leather and other synthetic materials. This standard can be used for all leather shoes terms involved in technical exchange; skill teaching; quality evaluation; formulation of various standards; enterprise management; preparation of various technical documents, materials, papers, reports and teaching materials. When necessary, illustrations and supplements can be given to the standard. This standard does not apply to cloth shoes, rubber shoes and plastic shoes.