I read an article in the Edible East Bay Magazine about Oakland Chinatown good eats. Here are the mentions:
Tao Yuen Pastry (816 Franklin) for take-out dim sum
Su Mi, Yu Chi Gao (shark fin dumpling)
Sun Hing (386 8th St) roasted pork-get it when it's fresh
Sun Sing Pastry (382 8th st) rice balls, patties & other unique items: deep-fried shrimp paste wrapped in bacon.
Yuen Hop Noodle Company (824 Webster) -fresh, handmade egg noodles different cuts from different regions of China
Ying Kee Restaurant (387 9th St) - xui cao soup- water dogs (dumplings)
Gum Kuo Restaurant (Franklin @ 9th St) - jook, chicken jook
Any others you want to share?