... ). Salt Fog Resistant: ≥500h(7). Color difference: <3ΔEPackingApplication1. Construction: (Outside) workshop, agricultural warehouse, residential precast unit, corrugated roof, wall, rainwater ... , terrace, retailer booth, roller shutter door(Inside) door, doorcase, light steel roof structure, folding screen, ceiling, elevator, stairway, vent gutter2. Electrical ...