The problem is that the object you're trying to photograph is quite shiny (and even reflective in the case of the chromed parts).
You can do a couple of things to reduce the reflections - though you'll probably never totally remove it from the chromed parts. First of all, try to move the object away from the greenscreen, by placing it on a small pedestal or stand (which is small enough to be hidden by the object itself). For example, a cotton bobin may work well (though I have no idea how big the actual product is!).
Secondly, you can get sprays that make the surface of a product a bit more matte, so that it reflects less. It's called 'Dulling Spray', and you can find it at photographic retailers. There are a wide variety of different types, so you might need to try a few out to get the best result. Usually it just sprays on then wipes off. once you're done photographing the object. Something like omne of these
Hope this helps!