Like the title says. Is there an area of Mong Kok with a concentration of auto repair workshops? I'm looking for somewhere that sells sulfuric acid as I'm going to do my own anodizing... the auto stores that I've been to on HK side (Sheung Wan) so far have been pretty useless- I would have thought battery acid would have been a pretty standard item for a garage. Instead, I've been told that I've got to go to the dark side for such exotica.