How do you read the dial diameter of the pressure gauge?
Generally speaking, how many round, or diameter XXmm, common 40mm, 60mm, 100mm, 150mm, 160mm dial, etc., so nominal
Pressure gauge diameter difference, especially now that the market size is very chaotic, but overall, with 40, 50, 60 GB, 100, 150 dial such as nominal, and export to 1 ", 1.5", 2 ", 2.5", 3 ", 4" dial such as nominal.
