Wang Yongjiu, who set up the restaurant Yongjiuwang, and his daughter, Wang Shiyi, who has helped develop the restaurant into a chain. A Sichuan restaurant chain focusing on aquaculture is bringing its local delicacies to Beijing, Li Yingxue reports. Wang Delu was a traditional fisherman born in Sichuan province in 1919, who frequently caught Tuojiang yanian - a catfish variety …