Steamed pork cake with moi choi ?????

There are so many types of Chinese pickled vegetables. If you have visited one of the larger Chinese supermarkets, you may be baffled with the array of dried or wet pickled vegetables: salt pickled, vinegar pickled, spice pickled, sweet pickled etc.. Everytime I go to those Chinese supermarkets in London I always find something I have never tried or heard before. So many to choose from and