There is static wire on the iron shelf, have grounding, do the shelves need earthing?
If the required no additional ground, more detailed advice you can ask Shenzhen Yatong, our static grounding pile is what they do, should be more professional
If the paint on the iron shelf has to remove the paint, connect the ground wire, the ground wire to check whether there is a good static grounding, the static grounding is a separate ground pile, you can check the resistance of the earth wire to the ground
