Help!
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The voltage meter on the seam welding machine is broken, and a purchase request needs to be submitted; but how do I determine the model and size? It is 0-450V. There is also a vibration-resistant electric contact pressure gauge, and the same problem exists with it. Those who are aware of this issue please help me solve it. Thank you!
Look closely at the dial of the watch – there it is! For the previous photo, fellow sailors can help you!
You need to check parameters such as model specifications and range!