Curious about how color coated prepainted GI steel coil is actually made and inspected? In this video, we take you inside Qingdao Jero Steel's facility for a hands-on look at the production of RAL 9002 flower design prepainted steel coil. You'll see each stage — from aluminum alloy and steel material selection to coating, packaging, and the final quality inspection by our dedicated 4-person team. We also show how our export team evaluates market changes and supports buyers with practical advice. A clear, informative walkthrough for B2B professionals sourcing reliable prepainted steel coil.