Qingdao OS Machinery Manufacturing Co., Ltd. Add: Room 502, Building 31,MAX Business Park,No.17,Guangbo Road, High-tech Qingdao Zone, ShandongMobile: +86 13361217879Tel: +86 13361217879Whatsapp: +86 13361217879 Email: qdos@qdos365.com
qingdaovgr@vgrmachine.com