Postal code administrative area 510280 Changgang Middle Street, Haizhu District, Guangzhou, Guangdong Province 510280 Changgang Middle Street, Haizhu District, Guangzhou, Guangdong Province 510280 Changgang Middle Street, Haizhu District, Guangzhou, Guangdong Province 510285 Changgang South Street, Changgang Middle Road, Haizhu District, Guangzhou, Guangdong Province