a级的英文

class a certification

• 级:    level; rank; grade
• Ａ级:    alfa; alpha class
• Ｓ级:    sierra class

例句与用法

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1. Hexagon bolt with flange - small series - product grade a
   六角法兰面螺栓小系列a级
2. 12 mm thick can pass the state a fireproof test
   12mm以上可达到国家耐燃a级检测
3. Inspection report of incombustible a grade gb 8624
   不燃性a级gb 8624检验报告
4. Plain washers - normal series - product grade a
   平垫圈.标准系列.产品等级a级
5. Copright right 2005 guangdong shine cables co . , ltd . design by
   我司被评为a级纳税人。