BS L 117:1975(2011) Specification for Tube of aluminium - magnesium - silicon - copper - chromium alloy — (Solution treated and artificially aged : not tested hydraulically) (Not exceeding 10 mm thickness) (Mg 1.0, Si 0.6, Cu 0.28, Cr 0.2)
1975BS L 117:1975 Specification for tube of aluminium-magnesium-silicon-copper-chromium alloy (solution treated and artificially aged: not tested hydraulically) (not exceeding 10 mm thickness) (Mg 1.0, Si 0.6, Cu 0.28, Cr 0.2)