Explanatory notes
… are usefully malleable and which contain by weight 2 % or less of carbon. However, chromium steels may contain higher … or more of copper ‑ 0.4 % or more of lead ‑ 1.65 % or more of manganese … superimposed layers, or ‑ straight lengths, which if of a thickness less than 4.75 mm are of a …Legal note
… are usefully malleable and which contain by weight 2 % or less of carbon. However, chromium steels may contain higher … or more of copper ‑ 0.4 % or more of lead ‑ 1.65 % or more of manganese … superimposed layers, or ‑ straight lengths, which if of a thickness less than 4.75 mm are of a …