content: Keep in mind it's just not China. Ever wonder why some car brands rust worse than others(International Scout), not even counting jap scrap. Steel was stored in open wall storage back when(some still do today).  Higher price steel rolls were in the center of the storage warehouse, outer rolls of steel are cheaper. Metallurgy has improved but storage methods forever are cheap. Even in climate controlled conditions it's a rigged market as far as supply/quality is concerned.