YS/T 417.4-1999 Defects of wrought aluminum and aluminum alloy ingots and their processed products - Part 4: Defects of wrought aluminum and aluminum alloy casting strips (English Version)
1999YS/T 417.4-1999 Defects of wrought aluminum and aluminum alloy ingots and their processed products - Part 4: Defects of wrought aluminum and aluminum alloy casting strips