Probably not Chinese and nothing to do with Vita of Guangdong province. On my example the metal is very grey - it looks much darker than the pic, wear is very heavy and this combined with the ground foot tend to suggest an earlier date. Of course it would be wrong to rule out other possibilities, some rather nice pressed glass in quite traditional styles was being made in China around the early 1980s, but I've never come across this pattern and the metal looks wrong for China; having said that, I'm not familiar with older, pre-communist production, though this would seem far less likely than a European origin.
It's a little frustrating as mine is back up north while I'm down here in Soton, what I can say is that it's a nice mould with the seams hidden in the vertical ribs, I can't remember offhand if it's a three or 4 part mould. It's pressed rather than mould-blown and is heavy for its size.