On JD.com there are 2 store pages for Nokia 6 from JD itself, and a lot store pages from 3-rd party stores. JD.com offers a pre-registration page for Nokia 6, and a preorder page for Nokia 6. The preorder units are long sold out, because JD.com allowed only about 9200 units to be available for “real” preorder for 66CNY (7€, 9$). The pre-registration page has more than half a million applicants, but they are registered only via email, and they take part in a giveaway JD.com organizes.
However, the interest is real, and I’m certain that if JD.com allowed more real preorders to be taken, the number would be much bigger than 10k. The reason for restricting preorders is probably Foxconn’s ability in manufacturing the device. Maybe JD.com cannot guarantee more than 10,000 units to be shipped on 19th January, when the official sale is expected to start.