铝和铝合金上非六价铬转换涂料规范的英文

standard specification for non-hexavalent chromium

• 铝:    aluminium
• 和:    mix; blend
• 铝合金:    alufer; ardal; alu ...
• 上:    upper; up; upward
• 非:    mistake; wrong; er ...
• 六:    a surname
• 价:    a male servant
• 铬:    chromium
• 转换:    change; transform; ...
• 涂料:    coating material; ...
• 规范:    standard; norm; sp ...