Marinate beef with wine and salt while you prepare everything else
Heat 3 tbsp of oil in wok until hot but not yet smoking. Add chilis and peppercorn and stir-fry until fragrant and the chilis are just beginning to brown (do not burn). Remove chilis and peppercorn and set aside, leaving the infused oil in the wok
Continue to heat wok over high flame until smoking. Add scallions and celery and stir-fry for a minute or two until they are just cooked but still crunchy. Pour contents of wok into serving bowl
Heat 3 tbsp of oil in wok over high eat until just smoking. Turn heat down to medium, add doubanjiang and stir-fry for a few seconds until fragrant
Add stock and soy sauce, turn heat up to high, and bring to boil
Stir cornstarch/water mixture into the marinating beef until coated, then add beef to pot. Wait until pot returns to boil, then separate beef slices. Simmer for a minute or two, until the beef is just cooked. Pour contents of pot into same serving bowl as vegetables
Coarsely chop or grind the chilis and peppercorns that were set aside earlier and sprinkle over top the serving bowl. Heat 4 tbsp oil in wok until smoking then pour the oil over the serving bowl (with caution and an apron on). Serve immediately