Domestic sales telephone： 86536－7262886　7271519
International Sales telephone：86536-7280385
FAX： 86536－7280777
Technical consultation：0536－7278962
National free service telephone：800-860-3068
After-sales service section：86536-7271529
Zip code：261100
Domestic Department E-mail:sdyy@yuanyou.cn　　
International Department E-mail:yuanyousd@163.com
yyjs@yuanyou.cn　
Integrated office E-mail:yybg@yuanyou.cn