The dial shall be made of copper aluminum alloy, inalterable black numerals and graduation on white background. The manufacture of same will be to applicable standards.
仪表的刻度盘应为机械指针式,应选用铜铝质,底色为白色,面标的数字和刻度为黑色(不褪色),刻度分配应采用厂家提供的标准。
The dial shall be made of copper aluminum alloy, inalterable black numerals and graduation on white background. The manufacture of same will be to applicable standards.
仪表的刻度盘应为机械指针式,应选用铜铝质,底色为白色,面标的数字和刻度为黑色(不褪色),刻度分配应采用厂家提供的标准。
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