Yonglong Street, Luo Zhang, Zhangmutou Town, Dongguan City. According to Baidu map, Dongguan Zhangmutou Big Mouth Cat Chain Store is located in Zhangluo Yonglong Street, Zhangmutou Town, Dongguan City. Mainly engaged in catering services. Dongguan is located in the south-central part of Guangdong Province, northeast of the Pearl River Delta, 50 kilometers north of Guangzhou and 90 kilometers south of Shenzhen.