Hmm.. found Bosma, they have a PDF catalog for astronomical telescopes
http://www.bosma.com.cn/en/down1.asp?no1=9
and there is this page
http://www.bosma.com.cn/en/product_info.asp?id=438
Page 6 of the catalog shows a 200mm aperture x 2400mm (f/12) Maksutov with a moving mirror focussing system claimed to have zero image shift. Not a Crayford. Superfically looks a bit better than the Saxon one, though no cooling fan. I have a friend from Guangzhou, might try to find out how much.
Also smaller Maks and mounts; none of their gear looks familiar.