Pusi, Shili, Rihua, Mattel, Taiwei, Fuan, Tailian, Tailian, Pingqian, etc. Wusha Industrial Zone in Chang 'an, Dongguan has the largest number of factories, with 153 factories, a large number of electronics factories, toy factories, garment factories, plastic factories and shoe factories. Wusha Community is located in the middle of Chang 'an Town, Dongguan City, adjacent to Shenzhen, with an area of 1 square kilometers. It has four resident groups: Caiwu, Chenwu, Liwu and Jiangbei.