Yeah - the 'qing yin zhong guo wu long cha' pots are also very famous, and were produced as souvenirs for the Fujian tea corp (as you mention), AFAIK, not for Xiang Xing Tea Company, at least not directly, but I could be wrong. I was meaning to start a separate thread for these later. Those exist in both 22 character seal, 6 character seal, and 4 character seal version (the latter both the standard Factory #1 seals), but never have the black enamel writing. I have another example of a pot produced for this purpose (but with a slightly different inscription) which I've posted to teachat before:
Ba le (芭乐) shape, 4 character seal. The pot feels very light (almost too light) in my hand. Photo is from the vendor; I can try to post a "now" picture, with the pot a bit more seasoned, if I get a chance. The same vendor also had this one, which I'm still kicking myself for not getting:
I believe hongtu does indeed refer to hongni.
Also, for those who don't understand "biāo zhǔn" (標準; lit. "standard") to refer to the pots often referred to as shuǐ píng (水平). Guang has posted his own thoughts about this at: http://houdeblog.com/?p=11 -- basically:
Sometimes people confuse the word "Shui Pin" and "Biao Zhun" teapots. Simply speaking, Shui Pin is a concept. But it later become widely used to refer to a family of yixings that No. 1 factory started to produce since 60's: the "Biao Zhun" teapots.
Biao Zhun: the original meaning is Standard. Yes, these were "standardized" teapots that No. 1 factory produced in great quantity. It was inspired by the shui pin teapots in Early R.O.C. (pic source: No. 2, Hu Yi magazine of Wu-Shin Publ. Co.)
Later the Biao Zhun family were joined with five unique members (Wu-Shin teapots): Bai Le, Xi Shi, Bian Deng, Rou Bian, and Tai Jian. Some of them are quite familiar to us: Bai Le and Xi Shi. Some are rare to see nowadays, especially Rou Bian and Tai Jian.
Thanks so much for the quick research / translation!
Amusing aside... marshaln told me that sometimes fake versions of the pots have typos on them. I don't read well enough to notice, but there are definitely a lot of fakes floating around of all of these styles of pots.