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We sincerely welcome friends around the world to contact us. Whether you contact us for business or need any helpfrom us, we are pleased to answer you in time, we would like to make friends around the world, develop together!

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Green Stone Switzerland Co., Ltd.
Email: sales@fluoride-fluorid.com (Reply within 1 working day) 
Shanghai Office: 168 Zhonggu Rd, Pingpu District, Shanghai, China. 
Xiamen Office:106, Houdaixi Road, Xiamen, China. 
Tel: +86 592 5365887 
WhatsApp: +86 189 6515 7632 
Working Time: 9:00--18:00(Shanghai GMT+8), Monday—Friday