PYRO-ART uses PYRO-ART products, for WECO I am not sure if they have Sunny products in their portfolio. Maybe, sometimes it would be helpful for us if you would write a little more, eg. what you do, what you expect, why you are doing that what you are doing...
Hi i know for sure that the China shells from Weco are produced by Lidu Fireworks China Regards, Silberblitz