Zhuzhou Olake Cemented Carbide Co., Ltd Address: 1204 Baoli Mansion, Changjiang North Road, Tianyuan District, Zhuzhou City, Hunan province, China Tel / Fax: +86-731-22588826 Email: sales-olake@vip.163.com Whatsapp: +86 - 13017133700 Website: www.olake-carbide.com