Wow ASD. There it is. A picture of your equipment: http://www.dayuwz.com/index.php?m=content&c=index&f=show&catid=77&contentid=115 That's a huge strike in my book. I worked in an engineering office for a time. We lost a major account because someone got hold of our plans and reverse engineered the product, then undercut us because they didn't have R&D costs. I then lost my job when workload dropped. That's what happens to legitimate businesses in a situation like this.
I logged in to say that I wasn't impressed for other reasons so will continue: My partner and I spent time shopping for stills at the conference. We talked to several and then compared notes. Dayu seems to use lighter gauge material than others, their plate design wasn't what it should be, and I didn't understand why there were kettles under the columns. After talking to knowledgeable folks about the plate design I doubt you're going to see any sort of reasonable run time from their equipment. Think very long days for a very long time. Overall I'd think they reverse engineered a picture without knowing why and hoped for the best.
Considering the copyright issues I wouldn't go near them.
Just my .02.