4026020 1 10 16。 The serial number refers to the inter-bank number of the bank, which is the unique identification mark of the local bank. Cheng Nan Branch of Dongguan Rural Commercial Bank, with the line number of 4026020116, is located at No.44, Cheng Nan Road, Guantai Avenue, Dongguan City, Guangdong Province, and can be reached by 10 and No.24 buses. ..