First off this is not a genuine piece.
As mentioned before machine made blade would NOT be signed. if they were signed it certainly would NOT look like the nakago shown. The patine is completely wrong, actually there is NO real patina.
Most of the fittings are a bit of a puzzle... While a couple pieces look right the patina gives it away as a fake on others.
Blade looks bad, either machine ground then fake "hand polishing" to cover up the grind marks or just very very very poor polishing, which to me makes no sense for a machine made blade.
The really interesting thing is this is a step up in fakes due to the a few of the koshirae looking genuine, however still easy to tell because the fittings were touched up and given a shine, which makes no sense for a 60-70 year old koshirae. It is very possible they may have bought a few real but non valuable japanese fittings from WWII, it is actually not uncommon at all for this to happen.
Whoever said this sword has been to Japan is lying. No way. There is absolutely NO import of steel blades AT ALL unless they are nihonto with proper paper work. Blunt or sharp. Blunting a steel blade means ABSOLUTELY nothing, it can be resharpened easily. So unless that blade is some aluminum alloy, it will NOT pass period. It is either destroyed or you get back on the airplane and leave.
Oops almost forgot. In my opinion it is VERY likely this fake chinese sword may have been assembled elsewhere from China. The blade/crap was bought from China and someone outside of China gathered the materials needed to make a more convincing fake to sell for a major profit.