How to mark the red line on an oil-filled vibration-resistant pressure gauge
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According to the regulations, the red line on a pressure gauge should be marked on the dial. Is the red line for the oil filling pressure gauge also marked on the dial?
It can be marked on the outside; the shock-resistant gauge has good sealing properties, and the outer cover does not move. But it should be noted that since the markings are on the outside, one must look straight at them when reading; measuring from the side will result in errors