The only quality high grade steel mill in China is Bao Steel. They have the third largest mill in the world, just outside of Shanghai on the port. They ONLY make high grade steel products, and yes they make tubes as well. Unfortunately, Bao does NOT export their tubes. They are 100% used...
AAMF (aagroup.com) has an SS vessel that they made for obtaining their Cat 2 Chinese pressure vessel cert. It is a code vessel, but if it fits the bill, I know they would let it go at an extremely reasonable price.
