I don't understand why anyone is debating whether China can manufacturer a quality product. Last I checked, iPhone's are assembled in China by Foxconn. Does anyone really think that is a piece of junk? I'm sure other example abound.
If Stern designed the pin and outsourced the manufacturing to a Chinese company, I have no doubt it can be done with high quality. It could just as easily turn out to be bad quality. But all it takes is someone experienced with Chinese manufacturing to make sure it is done correctly.
Whether this makes any business sense is a separate debate altogether.