stock code
300440
300440
028-8283 9999
k8凯发天生赢家一触即发人生-凯发k8官网下载客户端中心
if you have an investor relations question, you can contact us in one of the following ways
yunda technology official account
yunda technology service official account
028-8283 9999（contact number）
028-8283 9998（quality complaints）
028-8289 1080（24-hour service hotline）