标准号:IS 7513-1974
发布日期:1975/5/1 12:00:00
实施日期:1999/12/31 12:00:00
适用范围:1.1 Defines the principles of the use of symbols and specifies the symbols to be used in diagrams for fluid power systems.1.1.1 The use of these symbols does not preclude the use of other symbols commonly used for pipe work in other technical fields.