This standard stipulates that various welding methods such as metal welding and brazing shall be represented by Arabic numeral codes, and the numerical codes can be used as welding methods on the drawings. This standard is used in conjunction with GB324-80 "Weld Code".
GB/T 5185-1985 history
2005GB/T 5185-2005 Welding and allied processes.Nomenclature of processes and reference numbers
1985GB/T 5185-1985 Welding,brazing,braze welding and soldering of metals--List of processes for symbolic representation on drawings