I think most of us would be surprised as to which fittings are made in China nowadays. As Darren alluded to, some that may be packaged as being made in the USA etc, may only be anodised and packaged in that country. If the cost of those operations exceed the cost they're sourced for, they can have made in USA on the packaging. Despite being machined in China. Happens quite a lot with things like carbon bicycle frames etc