That's the problem, if you want to import and sell those frames you're going to be responsible for them and so you'll need additional in-house quality control and by that point to sell at a profit the RRP isn't much off a brand name frame and so there's no incentive for the consumer. The only way it seems to work is if you have a direct and close relationship with the factories and the legal structure in place in case one explodes while cycling and you get sued.
They've obviously found a factory they're happy with, I don't know how much QC they do in the UK but there's a reason a pair of 30mm disc brake wheels is £800 not the £400 some cost direct from china
That's the problem, if you want to import and sell those frames you're going to be responsible for them and so you'll need additional in-house quality control and by that point to sell at a profit the RRP isn't much off a brand name frame and so there's no incentive for the consumer. The only way it seems to work is if you have a direct and close relationship with the factories and the legal structure in place in case one explodes while cycling and you get sued.