Hi Gordon,
When I bought my Miyazawa some years ago, one of their big claims was that their plated flutes received the same level of "handmade" attention as their solid silver ones. So at least according to what they say, my plated body and mechanism, sterling head, Miyazawa flute with adjusting screws, is in fact a "handmade" flute.
Of course we all know that there is no such thing as a totally handmade flute (what, does this mean all the holes are drilled by hand using an eggbeater drill, not a drill press? of course not) or a totally machine made flute (even the very cheapest mass produced instrument uses people to do assembly, padding and regulation) so to a large extent calling a flute "handmade" or not is really an exercise in marketeering.
None of this, of course, has much to do with the OP's instrument which sounds like a Chinese knockoff (like the "Helmer" saxophones I've seen, and who knows what all else).