不锈钢上各类金属电镀的标准惯例的英文

standard practice for preparation of and

• 不锈钢:    stainless steel
• 上:    upper; up; upward
• 金属:    metals genus
• 电镀:    electroplate; elec ...
• 的:    4次方是 The fourth po ...
• 标准:    standard; criterio ...
• 惯例:    convention; usual ...