@liuzhou Are bing the same as jianbing? Lately, here in NYC, there has a been a jianbing craze (associated here with Beijing street food) with several storefront restaurants popping up devoted to it. In Beijing (as in the places here), the jianbing were like savory crepes, made with a batter rather than a yeasted dough and stuffed with various types of savory fillings - either egg based or meat/vegetable.
@Mianbao I'm sorry that this discussion may have left you with a bad taste in your mouth (please excuse the horrible pun) but I would point out that @liuzhou is quite an authority on rougiamo as he was apparently quite an addict while living in Xi'an - their ancestral home. He has made them at home and displayed them here many times and have always looked just like the ones I had while in Beijing. By the way, @Tropicalsenior yours look fantastic as well! I am by no means an authority on anything other than maybe some esoteric electrical stuff, but I appreciate your vote of confidence!