枝材之美工标准，日工标准，用途及化学成份的英文

aisi， jis end usage and chemical composition of cold drawn carbon steel shafting bar

• 枝:    branch; twig
• 材:    timber
• 美工:    art designing art ...
• 标准:    standard; criterio ...
• 日工:    daywork day labour ...
• 用途:    use
• 及:    reach; come up to
• 化学:    energy
• 成份:    component the unit ...