How long can double-person used stockings last? October 20th afternoon in Chengdu until noon on the 22nd – October 22nd in Xi'an – Oc...

How long can double-person used stockings last? October 20th afternoon in Chengdu until noon on the 22nd – October 22nd in Xi'an – October 23rd and 24th in Lanzhou – October 25th in Xining – October 26th in Taiyuan – October 27th in Zhengzhou (surrounding cities are also acceptable; a one or two-day fluctuation in the itinerary is normal; cities with no reservations will be cancelled and replaced with cities with reservations 💅 Book in advance, or you'll have to wait a year).