1.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.

1.仪表的刻度盘为机械指针式，铜铝合金材，底色为白色，的数字和刻度为黑色（不易褪色），刻度分配采厂家提供的准。