2017HG/T 20222-2017 Specification for welding technique of aluminium and aluminium alloy
1993HGJ 222-1992 Technical specification for welding aluminium and aluminium alloys
HGJ 222-1992 Technical specification for welding aluminium and aluminium alloys was changed to HG/T 20222-2017 Specification for welding technique of aluminium and aluminium alloy.