Hello, We are so sorry about not catching the latest response made by you. We really didn't receive any mail about the response. For this we must express our sincere apologies.
As you mentioned, we are now still using our own sync script to finish the mirror sync, but we will turn to the official provided ftpsync soon(in less than one month). And now we 're using mirrors.tuna.tsinghua.edu.cn/debian/ and mirrors.tuna.tsinghua.edu.cn/debian-cd/ as our upstream. Best regards, Mirror Maintenance Team@LZUOSS -- 兰州大学开源社区 Lanzhou University Open Source Society https://oss.lzu.edu.cn