... -coating-and-three-baking.4. The color of the Prepainted Steel Coil has a very wide selection, like ... 5). Impact: ≥9J(6). Salt Fog Resistant: ≥500h(7). Color difference: <3ΔEPackingApplication1. Construction: (Outside) workshop, agricultural warehouse, ... retailer booth, roller shutter door(Inside) door, doorcase, light steel roof structure, folding screen, ceiling, elevator, stairway, vent gutter2. ...